Materials
Material entities define and store material definitions for a model.
Materials do not have a display state in the modeling window. You can color the model according to the colors assigned to each material, which is based on element material relationships, by changing the color mode to material.
Element material relationships are dependent on the solver interface. In general, when a component is assigned a material, that material assignment is applied to all elements collected by that component. The method of assigning materials at the component level is therefore referred to as indirect material assignment. Direct material assignment is performed directly on the elements themselves, typically via a property assignment. Direct material assignments always take precedence over indirect property and material assignments.
Abaqus Cards
The material keywords *MATERIAL, *GASKET MATERIAL, and *CONNECTOR BEHAVIOR are supported in the ABAQUS_MATERIAL, GASKET_MATERIAL and CONNECTOR_BEHAVIOR card images, respectively.
Abaqus has a large selection of material types, many of which are not supported. In the Abaqus solver interface, material cards can be imported as generic materials. Generic materials are assigned the GENERIC_MATERIAL card image, and all material sub-options, parameters, and data lines are imported as simple text.
The validity or syntax of data is not checked when material cards are imported as generic materials. You must manually check the validity of the data. This method is helpful when material models are already defined, and are imported for the purpose of adding them to the corresponding sectional properties. No editing, updating, or review of the material data is intended.
The Generic Material setting can be enabled in the File Options dialog, that opens when you import a solver deck. You can also add an **HM_GENERIC_MATERIAL comment before a material card to have it imported as a generic material.
User comments blocks are supported for all materials. These comments are preserved during import and export of the Abaqus solver deck.
| Card | Description |
|---|---|
| *BIAXIAL TEST DATA | Provides biaxial test data (compression and/or tension). |
| *BRITTLE CRACKING | Define cracking and postcracking properties for the brittle cracking material model. |
| *BRITTLE FAILURE | Used with the brittle cracking material model to specify brittle failure of the material. |
| *BRITTLE SHEAR | Define the postcracking shear behavior of a material used in a brittle cracking model. |
| *CLAY HARDENING | Define piecewise linear hardening/softening of the Cam-clay plasticity yield surface. |
| *CLAY PLASTICITY | Specify the plastic part of the material behavior for elastic-plastic materials that use the extended Cam-clay plasticity model. |
| *COMBINED TEST DATA | Simultaneously defines the normalized shear and bulk compliance or relaxation
moduli as functions of time. Note: Must be used in conjunction with the
*VISCOELASTIC option.
Cannot be used if the *SHEAR TEST DATA and *VOLUMETRIC TEST DATA options are used. |
| *CONDUCTIVITY | Defines thermal conductivity. Note: Sub-option in the ABAQUS_MATERIAL card image.
|
| *CONNECTOR BEHAVIOR | Begins the specification of a connector behavior. |
| *CONNECTOR CONSTITUTIVE REFERENCE | Defines reference lengths and angles to be used in specifying connector
constitutive behavior. Note: Sub-option in the CONNECTOR_BEHAVIOR card
image.
|
| *CONNECTOR CONTACT FORCE | Defines the damping behavior for connector elements. Note: Sub-option in the
CONNECTOR_BEHAVIOR card image.
|
| *CONNECTOR DAMPING | Defines connector damping behavior. Note: Sub-option in the CONNECTOR_BEHAVIOR
card image.
|
| *CONNECTOR DERIVED COMPONENTS | Define user-customized components from numbered components. |
| *CONNECTOR ELASTICITY | Defines connector elastic behavior. Note: Sub-option in the CONNECTOR_BEHAVIOR
card image.
|
| *CONNECTOR FAILURE | Defines a failure criterion for connector elements. Note: Sub-option in the
CONNECTOR_BEHAVIOR card image.
Only available in the Explicit template. |
| *CONNECTOR FRICTION (Abaqus 6.4 version) |
Defines friction forces and moments in connector elements. Note: Sub-option in
the CONNECTOR_BEHAVIOR card image.
|
| *CONNECTOR FRICTION (Abaqus 6.5 or later version) |
Defines friction forces and moments in connector elements. Note: Sub-option in the CONNECTOR_BEHAVIOR
card image.
A *FRICTION card is needed, which can be created as a property using the FRICTION card image. |
| *CONNECTOR HARDENING | Defines the initial yield surface size and, optionally, the post-yield
hardening behavior in connector available components of relative
motion. Note: Sub-option in the CONNECTOR_BEHAVIOR card image.
|
| *CONNECTOR LOCK | Defines a locking criterion for connector elements. Note: Sub-option in the
CONNECTOR_BEHAVIOR card image.
|
| *CONNECTOR PLASTICITY | Defines plasticity behavior in connector elements. It must be used in conjunction with the *CONNECTOR HARDENING option. |
| *CONNECTOR POTENTIAL | Define a restricted set of mathematical functions to represent yield or limiting surfaces in the space spanned by connector available components. |
| *CONNECTOR STOP | Defines connector stops for connector elements. Note: Sub-option in the
CONNECTOR_BEHAVIOR card image.
|
| *CREEP | Defines a creep law. Note: Sub-option in both the ABAQUS_MATERIAL and *GASKET
MATERIAL card images.
Only available in the Standard templates. |
| *CRUSHABLE FOAM | Defines the crushable foam plasticity model. Note: Sub-option in the
ABAQUS_MATERIAL card image.
|
| *CRUSHABLE FOAM HARDENING | Defines hardening for the crushable foam plasticity model. Note: Sub-option in
the ABAQUS_MATERIAL card image.
|
| *DAMPING | Defines material damping. Note: Sub-option in the ABAQUS_MATERIAL card image.
|
| *DETONATION POINT | Defines detonation points for a JWL explosive equation of
state. Note: Sub-option in the ABAQUS_MATERIAL card image. Available when *EOS, Type=JWL is selected.
Only available for Abaqus/Explicit. |
| *DENSITY | Defines material mass density. Note: Sub-option in the ABAQUS_MATERIAL
card image.
|
| *DIELECTRIC | Defines dielectric material properties. Note: Sub-option in the
ABAQUS_MATERIAL card image.
|
| *ELASTIC | Defines elastic material properties. Note: Sub-option in the ABAQUS_MATERIAL
card image.
|
| *EOS | Defines a hydrodynamic material model in the form of an equation of
state. Note: Sub-option in the ABAQUS_MATERIAL card image.
It is only available for Abaqus/Explicit. |
| *EOS COMPACTION | Defines plastic compaction behavior for a hydrodynamic
material. Note: Sub-option in the ABAQUS_MATERIAL card image. Available when *EOS, Type=USUP / TABULAR is
selected.
It is only available for Abaqus/Explicit. |
| *EXPANSION | Defines thermal expansion. Note: Sub-option in both the ABAQUS_MATERIAL and
*GASKET MATERIAL card images.
|
| *FABRIC | Define the in-plane behavior of a fabric material under plane stress conditions. |
| *FLUID BEHAVIOR | Defines fluid behavior for a fluid cavity. |
| *GASKET BEHAVIOR | Begins the specification of a gasket behavior. Note: Only available in the
Standard templates.
|
| *GASKET CONTACT AREA | Defines a gasket contact area or contact width for average pressure
output. Note: Sub-option in the *GASKET_MATERIAL card image.
|
| *GASKET ELASTICITY | Defines elastic properties for the membrane and transverse shear behaviors of
a gasket. Note: Sub-option in the *GASKET_MATERIAL card image.
|
| *GASKET THICKNESS BEHAVIOR | Defines a gasket thickness-direction behavior. Note: Sub-option in the
*GASKET_MATERIAL card image.
|
| *GAS SPECIFIC HEAT | Defines the specific heat of reacted gas products for an ignition and growth
equation of state. Note: Sub-option in the ABAQUS_MATERIAL card image. Available
when *EOS, Type=IGNITION AND GROWTH is selected.
Only available for Abaqus/Explicit. |
| *HYPERELASTIC | Defines elastic properties for approximately incompressible
elastomers. Note: Sub-option in the ABAQUS_MATERIAL card image.
Supported sub-options:
|
| *HYPERFOAM | Defines elastic properties for a hyperelastic foam. Note: Sub-option in the
ABAQUS_MATERIAL card image.
Supported sub-options:
|
| *LOADING DATA | Define the loading response data for the uniaxial behavior of connector elements. |
| *LOW DENSITY FOAM | Define material coefficients for low-density foam materials. |
| *MATERIAL | Begins the definition of a material. |
| *MULLINS EFFECT | Defines Mullins effect material parameters for elastomers. Note: Sub-option in
the ABAQUS_MATERIAL card image.
Supported sub-options:
|
| *PIEZOELECTRIC | Defines piezoelectric material properties. Note: Sub-option in the
ABAQUS_MATERIAL card image.
Only available in the Standard templates. |
| *PLANAR TEST DATA | Provides planar test (or pure shear) data (compression and/or
tension). Note: This option can be used only in conjunction with the
*HYPERELASTIC option, the *HYPERFOAM option,
and the *MULLINS EFFECT option. This type of test does not
define the hyperelastic material constants fully; at the least, uniaxial or
biaxial test data should also be given.
|
| *PLASTIC | Defines a metal plasticity model. |
| *RATE DEPENDENT | Defines a rate-dependent viscoplastic model. Note: Sub-option in the
ABAQUS_MATERIAL card image.
|
| *REACTION RATE | Defines the reaction rate for an ignition and growth equation of
state. Note: Sub-option in the ABAQUS_MATERIAL card image. Available when *EOS, Type=IGNITION AND GROWTH is selected.
Only available for Abaqus/Explicit. |
| *SHEAR FAILURE | Defines a shear failure model and criterion. Note: Sub-option in the
ABAQUS_MATERIAL card image.
Only available for Abaqus/Explicit. |
| *SHEAR TEST DATA | Provides shear test data. Note: Can be used only in conjunction with the
*VISCOELASTIC option.
|
| *SIMPLE SHEAR TEST DATA | Provides simple shear test data. Note: Can be used only in conjunction with
the *HYPERFOAM option.
|
| *SPECIFIC HEAT | Defines specific heat. Note: Sub-option in the ABAQUS_MATERIAL card image.
|
| *UNIAXIAL | Indicate the start of shear or uniaxial test data along a particular direction to define the behavior of a fabric material. |
| *UNIXIAL TEST DATA | Provides uniaxial test data (compression and/or tension). Note: Can be used
only in conjunction with the *HYPERELASTIC option, the
*HYPERFOAM option, and the *MULLINS EFFECT
option.
|
| *UNLOADING DATA | Define unloading response for the uniaxial behavior of connector elements. |
| *USER MATERIAL | Defines material constants for use in subroutine UMAT, UMATHT, or
VUMAT. Note: Sub-option in the ABAQUS_MATERIAL card image.
|
| *USER OUTPUT VARIABLES | Defines the number of user variables. Note: Sub-option in both the
ABAQUS_MATERIAL and *GASKET MATERIAL card images.
|
| *VISCOELASTIC | Defines dissipative behavior for use with elasticity. Note: Sub-option in the
ABAQUS_MATERIAL card image.
Supported sub-options:
For the sub-options, the parameters SHRINF and VOLINF are supported. |
| *VOLUMETRIC TEST DATA | Provides volumetric test data. |
ANSYS Cards
If an unsupported field in a card is found, a message is displayed on the status bar. Messages are also printed to the file
ansys.msg. General slash commands, SOLUTION
commands, POST1 commands, and POST26 commands are
referred to as control cards. Unrecognized cards are written to a *.hmx
file.
| Card | Description |
|---|---|
| MAT | Sets the element material attribute pointer. |
| MP | Defines a linear material property as a constant or a function of temperature. |
| MPDATA | Defines property data to be associated with the temperature table. |
| MPDATA | Defines property data to be associated with the temperature table. |
| MPTEMP | Defines a temperature table for material properties. Note: Supports
temperature tables for each material attribute.
|
| MPTEMP |
Note: Supports temperature tables for each material attribute.
|
| TB | Activates a data table for nonlinear material properties or special element input. |
| TBDATA | Defines data for the data table. |
EXODUS Cards
| Card | Description |
|---|---|
| Acoustic | |
| Anisotropic | |
| Isotropic | |
| Isotropic_Viscoelastic | |
| Orthotropic | |
| Stochastic |
Feko
Supported media definitions and assignments are (anisotropic) dielectric media (with optional magnetic properties) and metallic media. Feko’s default Free space, Perfect electric conductor, and Perfect magnetic conductor materials are also supported.
Properties are defined in HyperMesh to map the required material assignments to mesh elements.
For Feko wire segments (Bar2 and Bar3) a Property with the Card Image Segment must be defined and applied to the Components that contain segments. The Segment radius, Core medium, and Surrounding medium must be set in such a Property.
For Feko triangles (Tria3 and Tria6) a Property with the Card Image = Triangle must be defined and applied to the Components that contain triangles. The Front and Back medium, and the Face medium must be defined. For Metallic faces, the Thickness must be defined. For the boundary surface between two dielectric regions (or between Free space and a dielectric) the Face Medium should be left as <Unspecified>.
For Feko tetrahedra (Tetra4) a Property with the Card Image = Tetrahedron must be defined and applied to the Components that contain tetrahedral mesh elements. The Volume medium must be set as either a dielectric medium or Perfect electric conductor.
LS-DYNA Cards
LS-DYNA allows you to program your own materials that can be used in a simulation. Unsupported LS-DYNA materials and user defined LS-DYNA materials are assigned the MAT_UNSUPPORTED card image.
Engineering Solutions imports unsupported material with the MAT_UNSUPPORTED card image, and preserves their corresponding IDs and associated components.
In the MAT_UNSUPPORTED card image, all material sub-options, parameters, and data lines are
supported as simple text. The validity or syntax of any data is not checked in this mode.
You must manually check the validity of the data. No editing, updating, or review of the
material data is intended. Also, time step calculation and mass calculation are not
available for the component that refers to this material.
| Card | Description |
|---|---|
| DI | Defines the dielectric or metallic medium properties. |
| SK | Assigns a material property to a surface. |
| Card | Description |
|---|---|
| *MAT_ACOUSTIC (*MAT_090) |
Appropriate for tracking low pressure stress waves in an acoustic media such
as air or water and can be used only with the acoustic pressure element
formulation. Note: Material Type 90
|
| *MAT_ALE_INCOMPRESSIBLE (*MAT_160) |
Solves incompressable flows with the ALE solver. It should be used with the
element formulation 6 and 12 in *SECTION_SOLID. Note: Material Type
160
|
| *MAT_ANISOTROPIC_ELASTIC (*MAT_002_ANIS) |
Valid for modeling the elastic-orthotropic behavior of solids, shells and
thick shells. Note: Material Type 2
|
| *MAT_ANISOTROPIC_ELASTIC_PLASTIC (*MAT_157) |
Valid for modeling the elastic-orthotropic behavior of solids, shells and
thick shells and solid elements. Note: Material Type 157
|
| *MAT_ANISOTROPIC_PLASTIC (*MAT_103_P) |
Simplified version of the Material Type 103. Applies only to shell
elements. Note: Material Type 103P
|
| *MAT_ANISOTROPIC_VISCOPLASTIC (*MAT_103) |
Applies to shell and brick elements. Note: Material Type 103
|
| *MAT_ARRUDA_BOYCE_RUBBER (*MAT_127) |
Provides a hyperelastic rubber model combined optionally with linear
viscoelasticity. Note: Material Type 127
|
| *MAT_ARUP_ADHESIVE (*MAT_169) |
Used for adhesive bonding in aluminum structures. Note: Material Type
169
|
| *MAT_BAMMAN (*MAT_051) |
Models temperature and rate dependent plasticity with a fairly complex model
that has many input parameters. Note: Material Type 51
|
| *MAT_BAMMAN_DAMAGE (*MAT_052) |
Extension of model 51 which includes the modeling of damage. Note: Material
Type 52
|
| *MAT_BARLAT_ANISOTROPIC_PLASTICITY (*MAT_033) |
Used for modeling anisotropic material behavior in forming
processes. Note: Material Type 33
|
| *MAT_BARLAT_YLD2000 (*MAT_133) |
Developed to overcome some shortcomings of the six parameters Barlat model
implemented at Material Type 33. Available for shell elements only. Note: Material
Type 133
|
| *MAT_BARLAT_YLD96 (*MAT_033_b) |
Used for modeling anisotropic material behavior in forming processes in
particular for aluminum alloys. Available for shell elements only. Note: Material
Type 33b
|
| *MAT_BILKHU/DUBOIS_FOAM (*MAT_075) |
Used for the simulation of isotropic crushable forms. Note: Material Type
75
|
| *MAT_BLATZ-KO_FOAM (*MAT_038) |
Used for the definition of rubber-like foams of polyurethane. Note: Material
Type 38
|
| *MAT_BLATZ-KO_RUBBER (*MAT_007) |
Used for the modeling of nearly incompressible continuum
rubber. Note: Material Type 7
|
| *MAT_BOLT_BEAM (*MAT_208) |
Used with beam elements using ELFORM=6 (Discrete Beam). Note: Material Type
208
|
| *MAT_BRITTLE_DAMAGE (*MAT_096) |
|
| *MAT_CABLE_DISCRETE_BEAM (*MAT_071) |
Permits elastic cables to be realistically modeled; thus, no force will
develop in compression. Note: Material Type 71
|
| *MAT_CELLULAR_RUBBER (*MAT_087) |
Provides a cellular rubber model with confined air pressure combined with
linear viscoelasticity. Note: Material Type 87
|
| *MAT_CLOSED_CELL_FOAM (*MAT_053) |
Used for the modeling of low density, closed cell polyurethane
foam. Note: Material Type 53
|
| *MAT_CODAM2 (*MAT_219) |
A sub-laminate-based continuum damage mechanics model for fiber reinforced
composite laminates made up of transversely isotropic layers. Used for brick,
shell, and thick shell elements. Note: Material Type 219
|
| *MAT_COHESIVE_ELASTIC (*MAT_184) |
Simple cohesive elastic model for use with solid element types 19 and 20 and
is not available for other solid element formulations. Note: Material Type
184
|
| *MAT_COHESIVE_GENERAL (*MAT_186) |
Cohesive material model that includes three general irreversible mixed-mode
interaction cohesive formulations with arbitrary normalized traction-separation
law given by a load curve. Note: Material Type 186
|
| *MAT_COHESIVE_MIXED_MODE (*MAT_138) |
Cohesive material model that includes a bilinear traction-separation law with
quadratic mixed mode delamination criterion and a damage
formulation. Note: Material Type 138
|
| *MAT_COHESIVE_MIXED_MODE_ELASTOPLASTIC_RATE (*MAT_240) |
Cohesive material formulation limited to linear softening with mixed mode
delamination criterion and a damage formulation. Note: Material Type
240
|
| *MAT_COHESIVE_TH (*MAT_185) |
Cohesive material for use with solid element types 19 and 20. Not available
for any other solid element formulation. Note: Material Type 185
|
| *MAT_COMPOSITE_DAMAGE (*MAT_022) |
An orthotropic material with optional brittle failure for composites can be
defined. Note: Material Type 22
|
| *MAT_COMPOSITE_FAILURE_MODEL |
Note: Material Type 59
|
| *MAT_COMPOSITE_FAILURE_SHELL_MODEL (*MAT_059_SHELL) |
Note: Material Type 59
|
| *MAT_COMPOSITE_FAILURE_SOLID_MODEL (*MAT_059_SOLID) |
Note: Material Type 59
|
| *MAT_COMPOSITE_LAYUP (*MAT_116) |
Used for modeling the elastic responses of composite layups that have an
arbitrary number of layers through the shell thickness. Note: Material Type
116
|
| *MAT_COMPOSITE_MATRIX (*MAT_117) |
Used for modeling the elastic responses of composites where a pre-integration
is used to compute the extensional, bending, and coupling stiffness coefficients
for use with the Belytschko Tsay resultant shell formulation. Note: Material Type
117
|
| *MAT_COMPOSITE_MSC (*MAT_161) |
Used to model the progressive failure analysis for composite materials
consisting of unidirectional and woven fabric layers. Note: Material Type
161
|
| *MAT_COMPOSITE_MSC_DMG (*MAT_162) |
Used to model the progressive failure analysis for composite materials
consisting of unidirectional and woven fabric layers. Note: Material Type
162
|
| *MAT_CONCRETE_DAMAGE (*MAT_072) |
Used to analyze buried steel reinforced concrete structures subjected to
impulsive loadings. Note: Material Type 72
|
| *MAT_CONCRETE_DAMAGE_REL3 (*MAT_072R3) |
Used to analyze buried steel reinforced concrete structures subjected to
impulsive loadings. Note: Material Type 72R3
|
| *MAT_CONCRETE_EC2 (*MAT_172) |
Represents plain concrete only, reinforcing steel only, or a smeared
combination of concrete and reinforcement. Note: Material Type 172
|
| *MAT_CORUS_VEGTER (*MAT_136) |
Plane stress orthotropic material model for metal forming. Note: Material Type
136
|
| *MAT_CRUSHABLE_FOAM (*MAT_063) |
Used to model crushable foam with optional damping and tension
cutoff. Note: Material Type 63
|
| *MAT_CSCM (*MAT_159) |
Concrete material Note: Material Type 159
|
| *MAT_CSCM_CONCRETE (*MAT_159_CONCRETE) |
Concrete material Note: Material Type 159
|
| *MAT_DAMPER_NONLINEAR_VISCUOUS (*MAT_S05) |
Used for discrete springs and dampers. Note: Material Type SD-5
|
| *MAT_DAMPER_VISCOUS (*MAT_S02) |
Used for discrete springs and dampers. Note: Material Type SD-2
|
| *MAT_DESHPANDE_FLECK_FOAM (*MAT_154) |
Used for modeling aluminum foam used as a filler material in aluminum
extrusions to enhance the energy absorbing capability of the extrusion. For solid
elements. Note: Material Type 154
|
| *MAT_ELASTIC (*MAT_001) |
Isotropic elastic material that is available for beam, shell and solid
elements. Note: Material Type 1
|
| *MAT_ELASTIC_FLUID (*MAT_001_FLUID) |
Isotropic elastic material available for beam, shell and solid
elements. Note: Material Type 1
|
| *MAT_ELASTIC_PLASTIC_HYDRO (*MAT_010) |
Used for the modeling of an elastic-plastic hydrodynamic
material. Note: Material Type 10
|
| *MAT_ELASTIC_PLASTIC_THERMAL (*MAT_004) |
Temperature dependent material coefficients can be defined. Note: Material
Type 4
|
| *MAT_ELASTIC_SPRING_DISCRETE_BEAM (*MAT_074) |
Permits elastic springs with damping to be combined and represented with a
discrete beam element type 6. Note: Material Type 74
|
| *MAT_ELASTIC_VISCOPLASTIC_THERMAL (*MAT_106) |
Elastic viscoplastic material with thermal effects. Note: Material Type
106
|
| *MAT_ELASTIC_WITH_VISCOSITY (*MAT_060) |
Used to simulate forming of glass products at high
temperatures. Note: Material Type 60
|
| *MAT_ELASTIC_6DOF_SPRING_DISCRETE_BEAM (*MAT_093) |
Defined for simulating the effects of nonlinear elastic and nonlinear viscous
beams by using six springs each acting about one of the six local degrees of
freedom. Note: Material Type 93
|
| *MAT_EMMI (*MAT_151) |
The Evolving Microstructural Model of Inelasticity (EMMI) is a temperature
and rate-dependent state variable model developed to represent the large
deformation of metals under diverse loading conditions. This model is available
for 3D solid elements, 2D solid elements and thick shell forms 3 and
5. Note: Material Type 151
|
| *MAT_ENHANCED_COMPOSITE_DAMAGE (*MAT_054) |
Enhanced versions of the composite model Material Type 22. Note: Material
Types 54-55
|
| *MAT_FABRIC (*MAT_034) |
Developed for airbag materials. Note: Material Type 34
|
| *MAT_FINITE_ELASTIC_STRAIN_PLASTICITY (*MAT_112) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain rate dependency can be defined. Note: Material Type
112
|
| *MAT_FLD_TRANSVERSELY_ANISOTROPIC (*MAT_039) |
Used for simulating sheet forming processes with anisotropic
material. Note: Material Type 39
|
| *MAT_FLD_3_PARAMETER_BARLAT (*MAT_190) |
Used for modeling sheets with anisotropic materials under plane stress
conditions. Note: Material Type 190
|
| *MAT_FORCE_LIMITED (*MAT_029) |
With this material model, for the Belytschko-Schwer beam only, plastic hinge
forming at the ends of a beam can be modeled using curve
definitions. Note: Material Type 29
|
| *MAT_FRAZER_NASH_RUBBER_MODEL (*MAT_031) |
This model defines rubber from uniaxial test data. Note: Material Type
31
|
| *MAT_FU_CHANG_FOAM (*MAT_083) |
Rate effects can be modeled in low and medium density foams. Note: Material
Type 83
|
| *MAT_FU_CHANG_FOAM_DAMAGE_DECAY (*MAT_083_DAMAGE_DECAY) |
Rate effects can be modeled in low and medium density foams. Note: Material
Type 83
|
| *MAT_GAS_MIXTURE (*MAT_148) |
Used for the simulation of thermally equilibrated ideal gas
mixtures. Note: Material Type 148
|
| *MAT_GENERAL_JOINT_DISCRETE_BEAM (*MAT_097) |
Used to define a general joint constraining any combination of degrees of
freedom between two nodes. Note: Material Type 97
|
| *MAT_GENERAL_NONLINEAR_1DOF_DISCRETE_BEAM (*MAT_121) |
Very general spring and damper model. Note: Material Type 121
|
| *MAT_GENERAL_NONLINEAR_6DOF_DISCRETE_BEAM (*MAT_119) |
Very general spring and damper model. Note: Material Type 119
|
| *MAT_GENERAL_SPRING_DISCRETE_BEAM | Permits elastic and elastoplastic springs with damping to be represented with
a discrete beam element type 6 using six springs each acting about one of the six
local degrees of freedom. Note: Material Type 196
|
| *MAT_GENERAL_VISCOELASTIC (*MAT_076) |
Provides a general viscoelastic Maxwell model having up to 6 terms in the
prony series expansion and is useful for modeling dense continuum rubbers and
solid explosives. Note: Material Type 76
|
| *MAT_GEOLOGIC_CAP_MODEL (*MAT_025) |
This is an inviscid two invariant geologic cap model. Note: Material Type
25
|
| *MAT_GEPLASTIC_SRATE_2000a (*MAT_101) |
Characterizes General Electric's commercially available engineering
thermoplastics subjected to high strain rate events. Note: Material Type
101
|
| *MAT_GURSON (*MAT_120) |
Gurson dilatational-plastic model. Available for shell and solid
elements. Note: Material Type 120
|
| *MAT_GURSON_JC (*MAT_120_JC) |
Enhancement of Material Type 120. Gurson model with additional Johnson-Cook
failure criterion. Note: Material Type 120B
|
| *MAT_GURSON_RCDC (*MAT_120_RCDC) |
This is an enhancement of material Type 120. This is the Gurson model with
the Wilkins Rc-Dc fracture model added. This model is available for shell and
solid elements. Note: Material Type 120C
|
| *MAT_HIGH_EXPLOSIVE_BURN (*MAT_008) |
Used fo the modeling of the detonation of a high explosive. Note: Material
Type 8
|
| *MAT_HILL_FOAM (*MAT_177) |
Highly compressible foam. Note: Material Type 177
|
| *MAT_HILL_3R (*MAT_122) |
Planar anisotropic material model with 3 R values. Note: Material Type
122
|
| *MAT_HILL_90 (*MAT_243) |
Used for modeling sheets with anisotropic materials under plane stress
conditions. Note: Material Type 243
|
| *MAT_HONEYCOMB (*MAT_026) |
The major use of this material model is for honeycomb and foam materials with
real anisotropic behavior. Note: Material Type 26
|
| *MAT_HYDRAULIC_GAS_DAMPER_DISCRETE_BEAM (*MAT_070) |
Special purpose element represents a combined hydraulic and gas-filled damper
which has a variable orifice coefficient. Note: Material Type 70
|
| *MAT_HYPERELASTIC_RUBBER (*MAT_077_H) |
Provides a general hyperelastic rubber model combined optionally with linear
viscoelasticity. Note: Material Type 77
|
| *MAT_INELASTIC_SPRING_DISCRETE_BEAM (*MAT_094) |
Elastoplastic springs with damping are represented with a discrete beam
element type 6. Note: Material Type 94
|
| *MAT_INELASTIC_6DOF_SPRING_DISCRETE_BEAM (*MAT_095) |
Defined for simulating the effects of nonlinear inelastic and nonlinear
viscous beams by using six springs each acting about one of the six local degrees
of freedom. Note: Material Type 95
|
| *MAT_ISOTROPIC_ELASTIC_FAILURE (*MAT_013) |
Non-iterative plasticity with simple plastic strain failure
model. Note: Material Type 13
|
| *MAT_ISOTROPIC_ELASTIC_PLASTIC (*MAT_012) |
Very low cost isotropic plasticity model for three-dimensional
solids. Note: Material Type 12
|
| *MAT_JOHNSON_COOK (*MAT_015) |
The Johnson/Cook strain and temperature sensitive plasticity is sometimes
used for problems where the strain rates vary over a large range and adiabatic
temperature increases due to plastic heating causes material
softening. Note: Material Type 15
|
| *MAT_JOHNSON_HOLMQUIST_CERAMICS (*MAT_110) |
Used for modeling ceramics, glass, and other brittle materials. Note: Material
Type 110
|
| *MAT_JOHNSON_HOLMQUIST_CONCRETE (*MAT_111) |
Used for modeling concrete subjected to large strains, high strain rates, and
high pressures. Note: Material Type 111
|
| *MAT_JOHNSON_HOLMQUIST_JH1 (*MAT_241) |
Used for modeling ceramics, glass, and other brittle materials. Note: Material
Type 241
|
| *MAT_KELVIN-MAXWELL_VISCOELASTIC (*MAT_061) |
Used for modeling viscoelastic bodies, such as foams. Note: Material Type
61
|
| *MAT_KINEMATIC_HARDENING_BARLAT2000 (*MAT_242) |
Used to model metal sheets under cyclic plasticity loading and with
anisotropy in plane stress condition. Note: Material Type 242
|
| *MAT_KINEMATIC_HARDENING_BARLAT89 (*MAT_226) |
Used to model metal sheets under cyclic plasticity loading and with
anisotropy in place stress condition. Note: Material Type 226
|
| *MAT_KINEMATIC_HARDENING_TRANSVERSELY_ANISOTROPIC (*MAT_125) |
Note: Material Type 125
|
| *MAT_LAMINATED_COMPOSITE_FABRIC (*MAT_058) |
Depending on the type of failure surface, may be used to model composite
materials with unidirectional layers, complete layers, complete laminates, and
woven fabrics. Note: Material Type 58
|
| *MAT_LAMINATED_GLASS (*MAT_032) |
With this material model, a layered glass including polymeric layers can be
modeled. Note: Material Type 32
|
| *MAT_LAYERED_LINEAR_PLASTICITY (*MAT_114) |
Layered elastoplastic material with an arbitrary stress versus strain curve
and an arbitrary strain rate dependency can be defined. Note: Material Type
114
|
| *MAT_LINEAR_ELASTIC_DISCRETE_BEAM (*MAT_066) |
Used for simulating the effects of a linear elastic beam by using six springs
each acting about one of the six local degrees of freedom. Note: Material Type
66
|
| *MAT_LOW_DENSITY_FOAM (*MAT_057) |
Used for modeling high density foams. Note: Material Type 57
|
| *MAT_LOW_DENSITY_SYNTHETIC_FOAM (*MAT_179) |
Used for modeling rate independent low density foams, which have the property
that the hysteresis in the loading-unloading curve is considerably reduced after
the first loading cycle. Note: Material Type 179
|
| *MAT_LOW_DENSITY_SYNTHETIC_FOAM_WITH_FAILURE (*MAT_179_WITH_FAILURE) |
Used for modeling rate independent low density foams, which have the property
that the hysteresis in the loading-unloading curve is considerably reduced after
the first loading cycle. Note: Material Type 179
|
| *MAT_LOW_DENSITY_SYNTHETIC_FOAM_ORTHO (*MAT_180) |
Used for modeling rate independent low density foams, which have the property
that the hysteresis in the loading-unloading curve is considerably reduced after
the first loading cycle. Note: Material Type 180
|
| *MAT_LOW_DENSITY_SYNTHETIC_FOAM_ORTHO_WITH_FAILURE (*MAT_180_WITH_FAILURE) |
Used for modeling rate independent low density foams, which have the property
that the hysteresis in the loading-unloading curve is considerably reduced after
the first loading cycle. Note: Material Type 180
|
| *MAT_LOW_DENSITY_VISCOUS_FOAM (*MAT_073) |
Used for modeling Low Density Urethane Foam with high compressibility and
with rate sensitivity which can be characterized by a relaxation
curve. Note: Material Type 73
|
| *MAT_MICROMECHANICS_DRY_FABRIC (*MAT_235) |
Used for modeling the elastic response of loose fabric used in inflatable
structures, parachutes, body armor, blade containments, and airbags. Note: Material
Type 235
|
| *MAT_MODIFIED_CRUSHABLE_FOAM (*MAT_163) |
Dedicated to modeling crushable foam with optional damping, tension cutoff,
and strain rate effects. Note: Material Type 163
|
| *MAT_MODIFIED_HONEYCOMB (*MAT_126) |
Used for aluminum honeycomb crushable foam materials with anisotropic
behavior. Note: Material Type 126
|
| *MAT_MODIFIED_PIECEWISE_LINEAR_PLASTICITY (*MAT_123) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain-rate dependency can be defined. Note: Material Type
123
|
| *MAT_MODIFIED_PIECEWISE_LINEAR_PLASTICITY_RATE (*MAT_123_RATE) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain rate dependency can be defined. Note: Material Type
123
|
| *MAT_MODIFIED_PIECEWISE_LINEAR_PLASTICITY_RTCL (*MAT_123_RTCL) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain rate dependency can be defined. Note: Material Type
123
|
| *MAT_MODIFIED_ZERILLI_ARMSTRONG (*MAT_065) |
Rate and temperature sensitive plasticity model which is sometimes preferred
in ordinance design calculations. Note: Material Type 65
|
| *MAT_MOMENT_CURVATURE_BEAM (*MAT_166) |
Beam material for performing non-liner elastic or multi-linear plastic
analysis. Note: Material Type 166
|
| *MAT_MOONEY_RIVLIN_RUBBER (*MAT_027) |
A two-parametric material model for rubber can be defined. Note: Material Type
27
|
| *MAT_MTS (*MAT_088) |
Available for applications involving large strains, high pressures and strain
rates. Note: Material Type 88
|
| *MAT_NONLINEAR_ELASTIC_DISCRETE_BEAM (*MAT_067) |
Used for simulating the effects of nonlinear elastic and nonlinear viscous
beams by using six springs each acting about one of the six local degrees of
freedom. Note: Material Type 67
|
| *MAT_NONLINEAR_ORTHOTROPIC (*MAT_040) |
Used fo the definition of an orthotropic nonlinear elastic material based on
a finite strain formulation with the initial geometry as the
reference. Note: Material Type 40
|
| *MAT_NONLINEAR_PLASTIC_DISCRETE_BEAM (*MAT_068) |
Used for simulating the effects of nonlinear elastoplastic, linear viscous
behavior of beams by using six springs each acting about one of the six local
degrees of freedom. Note: Material Type 68
|
| *MAT_NULL (*MAT_009) |
Allows equations of state to be considered without computing deviatoric
stresses. Note: Material Type 9
|
| *MAT_OGDEN_RUBBER (*MAT_077_O) |
Provides the Ogden (1984) rubber model combined optionally with linear
viscoelasticity. Note: Material Type 77
|
| *MAT_ORIENTED_CRACK (*MAT_017) |
This material may be used to model brittle materials which fail due to large
tensile stresses. Note: Material Type 17
|
| *MAT_ORTHOTROPIC_ELASTIC (*MAT_002) |
Valid for modeling the elastic-orthotropic behavior of solids, shells and
thick shells. Note: Material Type 2
|
| *MAT_ORTHOTROPIC_SIMPLIFIED_DAMAGE (*MAT_221) |
An orthotropic material with optional simplified damage and optional failure
for composites can be defined. Only valid for 3D solid elements with reduced or
full integration. Note: Material Type 221
|
| *MAT_ORTHOTROPIC_THERMAL (*MAT_021) |
A linearly elastic, orthotropic material with orthotropic thermal
expansion. Note: Material Type 21
|
| *MAT_ORTHOTROPIC_VISCOELASTIC (*MAT_086) |
Allows the definition of an orthotropic material with a viscoelastic part.
Applies to shell elements. Note: Material Type 86
|
| *MAT_PIECEWISE_LINEAR_PLASTICITY (*MAT_024) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain rate dependency can be defined. Note: Material Type
24
|
| *MAT_PLASTICITY_COMPRESSION_TENSION (*MAT_124) |
An isotropic elastic-plastic material where unique yield stress versus
plastic strain curves can be defined for compression and tension. Note: Material
Type 124
|
| *MAT_PLASTICITY_COMPRESSION_TENSION_E0S (*MAT_155) |
An isotropic elastic-plastic material where unique yield stress versus
plastic strain curves can be defined for compression and tension. Note: Material
Type 155
|
| *MAT_PLASTIC_KINEMATIC (*MAT_003) |
Suited to model isotropic and kinematic hardening plasticity with the option
of including rate effects. Note: Material Type 3
|
| *MAT_PLASTICITY_POLYMER (*MAT_089) |
An elasto-plastic material with an arbitrary stress versus strain curve and
arbitrary strain rate dependency can be defined. Note: Material Type
89
|
| *MAT_PLASTICITY_WITH_DAMAGE (*MAT_082, *MAT_081) |
An elasto-visco-plastic material with an arbitrary stress versus strain curve
and arbitrary strain rate dependency can be defined. Note: Material Types
81-82
|
| *MAT_PLASTICITY_WITH_DAMAGE_ORTHO (*MAT_081_ORTHO) |
Invokes an orthotropic damage model. Note: Material Types 81-82
|
| *MAT_PLASTICITY_WITH_DAMAGE_ORTHO_RCDC (*MAT_082_ORTHO_RCDC) |
Invokes the damage model developed by Wilkins. Note: Material Types
81-82
|
| *MAT_PML_ELASTIC (*MAT_230) |
A perfectly-matched layer (PML) material. An absorbing layer material used to
simulate wave propagation in an unbounded isotropic elastic medium. Only available
for solid 8-node bricks (element type 2). Note: Material Type 230
|
| *MAT_PML_ELASTIC_FLUID (*MAT_230_FLUID) |
A perfectly-matched layer (PML) material with a pressure fluid constitutive
law. Used in a wave-absorbing layer adjacent to a fluid material
(*MAT_ELASTIC_FLUID) in order to simulate wave propagation in an unbound fluid
medium. Note: Material Type 230
|
| *MAT_POLYMER (MAT_168) |
Used for brick elements. Note: Material Type 168
|
| *MAT_POWDER (*MAT_271) |
Used to analyze the compaction and sintering of cemented carbides. Only
available for solid elements. Note: Material Type 271
|
| *MAT_POWER_LAW_PLASTICITY (*MAT_018) |
This is an isotropic plasticity model with rate effects which uses a power
law hardening rule. Note: Material Type 18
|
| *MAT_PSEUDO_TENSOR (*MAT_016) |
This model has been used to analyze buried steel reinforced concrete
structures subjected to impulsive loadings. Note: Material Type 16
|
| *MAT_RATE_SENSITIVE_POLYMER (*MAT_141) |
Used to model the simulation of an isotropic ductile polymer with strain rate effects. Known as the modified Ramaswamy-Stouffer model.
Note: Material Type
141
|
| *MAT_RATE_SENSITIVE_POWERLAW_PLASTICITY (*MAT_064) |
Used to model strain rate sensitive elasto-plastic material with a power law
hardening. Note: Material Type 64
|
| *MAT_RESULTANT_ANISOTROPIC (*MAT_170) |
This model is available for the Belytschko-Tsay and the C0 triangular shell
elements and is based on a resultant stress formulation. Note: Material Type
170
|
| *MAT_RESULTANT_PLASTICITY (*MAT_028) |
A resultant formulation for beam and shell elements including elasto-plastic
behavior can be defined. Note: Material Type 28
|
| *MAT_RIGID (*MAT_020) |
Parts made from this material are considered to belong to a rigid body (for
each part ID). Note: Material Type 20
|
| *MAT_RIGID_DISCRETE (*MAT_220) |
Rigid material for shells or solids. Note: Material Type 220
|
| *MAT_SAMP-1 (*MAT_187) |
Uses an isotropic C-1 smooth yield surface for the description of
non-reinforced plastics. Note: Material Type 187
|
| *MAT_SCHWER_MURRARY_CAP_MODEL (*MAT_145) |
The Schwer & Murray Cap Model, known as the Continuous Surface Cap Model,
is a three invariant extension of the Geological Cap Model (Material Type 25) that
also includes viscoplasticity for rate effects and damage mechanics to model
strain softening. Note: Material Type 145
|
| *MAT_SEATBELT (*MAT_B01) |
Define a seat belt material. Note: Material Type B01
|
| *MAT_SEISMIC_BEAM (*MAT_191) |
Enables lumped plasticity to be developed at the 'node 2' end of
Belytschko-Schwer beams (resultant formulation). Note: Material Type
191
|
| *MAT_SHAPE_MEMORY (*MAT_030) |
This material model describes the superelastic response present in
shape-memory alloys that is the peculiar material ability to undergo large
deformations with full recovery in loading-unloading cycles. Note: Material Type
30
|
| *MAT_SID_DAMPER_DISCRETE_BEAM (*MAT_069) |
The side impact dummy uses a damper that is not adequately treated by the
nonlinear force versus relative velocity curves since the force characteristics
are dependent on the displacement of the piston. Note: Material Type
69
|
| *MAT_SIMPLIFIED_JOHNSON_COOK (*MAT_098) |
Used for problems where the strain rates vary over a large
range. Note: Material Type 98
|
| *MAT_SIMPLIFIED_JOHNSON_COOK_ORTHOTROPIC_DAMAGE (*MAT_099) |
Implemented with multiple through thickness integration points. Extension of
Model 98 to include orthotropic damage as a means of treating failure in aluminum
panels. Note: Material Type 99
|
| *MAT_SIMPLIFIED_RUBBER_FOAM (*MAT_181) |
Provides a rubber and foam model defined by a single uniaxial load curve or
by a family of uniaxial curves at discrete strain rates. Note: Material Type
181
|
| *MAT_SIMPLIFIED_RUBBER_FOAM_WITH_FAILURE (*MAT_181_WITH_FAILURE) |
Provides a rubber and foam model defined by a single uniaxial load curve or
by a family of uniaxial curves at discrete strain rates. Note: Material Type
181
|
| *MAT_SIMPLIFIED_RUBBER_WITH_DAMAGE (*MAT_183) |
Provides an incompressible rubber model defined by a single uniaxial load
curve for loading (or a table if rate effects are considered) and a single
uniaxial load curve for unloading. Note: Material Type 183
|
| *MAT_SOIL_AND_FOAM (*MAT_005) |
Simple model that works in some ways like a fluid. Note: Material Type
5
|
| *MAT_SOIL_AND_FOAM_FAILURE (*MAT_014) |
The input for this model is the same as for *MAT_SOIL_AND_FOAM; however, when
the pressure reaches the failure pressure, the element loses its ability to carry
tension. Note: Material Type 14
|
| *MAT_SOIL_CONCRETE (*MAT_078) |
Permits concrete and soil to be efficiently modeled. Note: Material Type
78
|
| *MAT_SPECIAL_ORTHOTROPIC (*MAT_130) |
Applies to Belytschko-Tsay and the C0 triangular shell
elements. Note: Material Type 130
|
| *MAT_SPOTWELD (*MAT_100) |
Applies to beam elements Type 9 and to solid elements Type 1 with Type 6
hourglass controls. Note: Material Type 100
|
| *MAT_SPOTWELD_DAIMLER_CHRYSLER (*MAT_100_DAIMLER_CHRYSLER) |
Applies to solid elements Type 1 with Type 6 hourglass
controls. Note: Material Type 100
|
| *MAT_SPOTWELD_DAMAGE-FAILURE (*MAT_100_DAMAGE-FAILURE) |
Applies to beam element type 9 and to solid element type 1 with type 6
hourglass controls. Note: Material Type 100
|
| *MAT_SPRING_ELASTIC (*MAT_S01) |
Used for discrete springs and dampers. Provides a translational or rotational
elastic spring located between two nodes. Note: Material Type SD-1
|
| *MAT_SPRING_ELASTOPLASTIC (*MAT_S03) |
Used for discrete springs and dampers. Provides an elastoplastic
translational or rotational spring with isotropic hardening located between two
nodes. Note: Material Type SD-3
|
| *MAT_SPRING_GENERAL_NONLINEAR (*MAT_S06) |
Used for discrete springs and dampers. Provides a general nonlinear
translational or rotational spring with arbitrary loading and unloading
definitions. Note: Material Type SD-6
|
| *MAT_SPRING_INELASTIC (*MAT_S08) |
Used for discrete springs and dampers. Provides an inelastic tension or
compression only, translational or rotational spring. Note: Material Type
SD-8
|
| *MAT_SPRING_MAXWELL (*MAT_S07) |
Used for discrete springs and dampers. Provides a three Parameter Maxwell
Viscoelastic translational or rotational spring. Note: Material Type
SD-7
|
| *MAT_SPRING_NONLINEAR_ELASTIC (*MAT_S04) |
Used for discrete springs and dampers. Provides a nonlinear elastic
translational and rotational spring with arbitrary force versus displacement and
moment versus rotation, respectively. Note: Material Type SD-4
|
| *MAT_STEEL_EC3 | Tables and formulae from Eurocode 3 are used to derive the mechanical
properties and their variation with temperature, although these can be overriden
by user-defined curves. Note: Material Type 202
|
| *MAT_STEINBERG (*MAT_011) |
This material is available for modeling materials deforming at very high
strain rates (>105) and can be used with solid elements. Note: Material Type
11
|
| *MAT_STEINBERG_LUND (*MAT_011_LUND) |
This material is a modification of the Steinberg model to include the rate
model of Steinberg and Lund (1989). Note: Material Type 11
|
| *MAT_STRAIN_RATE_DEPENDENT_PLASTICITY (*MAT_019) |
A strain rate dependent material can be defined. Note: Material Type
19
|
| *MAT_TABULATED_JOHNSON_COOK (*MAT_224) |
Defines an elasto-viscoplastic material with arbitrary stress versus strain
curve(s), and arbitrary strain rate dependency. Note: Material Type
224
|
| *MAT_TEMPERATURE_DEPENDENT_ORTHOTROPIC (*MAT_023) |
Defines an orthotropic elastic material with arbitrary temperature
dependency. Note: Material Type 23
|
| *MAT_THERMAL_ISOTROPIC (*MAT_T01) |
Defines isotropic thermal properties. Note: Thermal Material Property Type
1
|
| *MAT_THERMAL_ISOTROPIC_TD_LC (*MAT_T06) |
Defines isotropic thermal properties that are temperature dependent specified
by load curves. Note: Thermal Material Property Type 6
|
| *MAT_THERMAL_ORTHOTROPIC (*MAT_T02) |
Defines orthotropic thermal properties. Note: Thermal Material Property Type
2
|
| *MAT_THERMO_ELASTO_VISCOPLASTIC_CREEP (*MAT_188) |
Defines creep separately from plasticity. Note: Material Type
188
|
| *MAT_TRANSVERSELY_ANISOTROPIC_CRUSHABLE_FOAM (*MAT_142) |
Used for an extruded foam material that is transversely isotropic, crushable,
and of low density with no significant Poisson effect. Note: Material Type
142
|
| *MAT_TRANSVERSELY_ANISOTROPIC_ELASTIC_PLASTIC (*MAT_037) |
Simulates sheet forming processes with anisotropic material. Note: Material
Type 37
|
| *MAT_TRANSVERSELY_ANISOTROPIC_ELASTIC_PLASTIC_NLP_FAILURE (*MAT_037_NLP_FAILURE) |
Simulates sheet forming processes with anisotropic material. Note: Material
Type 37
|
| *MAT_TRANSVERSELY_ANISOTROPIC_ELASTIC_PLASTIC_ECHANGE (*MAT_037_ECHANGE) |
Simulates sheet forming processes with anisotropic material. Note: Material
Type 37
|
| *MAT_TRIP (*MAT_113) |
Isotropic elasto-plastic material model that applies to shell elements
only. Note: Material Type 113
|
| *MAT_UHS_STEEL (*MAT_244) |
Material for hot stamping and press hardening. Note: Material Type
244
|
| *MAT_UNSUPPORTED | |
| *MAT_USER_DEFINED_MATERIAL | User can supply their own subroutines. Note: Material Types
41-50
|
| *MAT_VACUUM (*MAT_140) |
Dummy material representing a vacuum in a multi-material Euler/ALE
model. Note: Material Type 140
|
| *MAT_VISCOELASTIC (*MAT_006) |
Used for the modeling of viscoelastic behavior for beams (Hughes-Liu),
shells, and solids. Note: Material Type 6
|
| *MAT_VISCOELASTIC_HILL_FOAM (*MAT_178) |
Highly compressible foam. Note: Material Type 178
|
| *MAT_VISCOELASTIC_LOOSE_FABRIC (*MAT_234) |
Used for modeling the elastic and viscoelastic response of loose fabric used
in body armor, blade containments, and airbags. Note: Material Type
234
|
| *MAT_VISCOPLASTIC_MIXED_HARDENING (*MAT_225) |
An elasto_viscoplastic material with an arbitrary stress versus strain curve
and arbitrary strain rate dependency can be defined. Kinematic, isotropic, or a
combination or kinematic and isotropic hardening can be specified. Also, failure
based on plastic strain can be defined. Note: Material Type 225
|
| *MAT_VISCOUS_FOAM (*MAT_062) |
Used to represent the Confor Foam on the ribs of EuroSID side impact
dummy. Note: Material Type 62
|
| *MAT_WINFRITH_CONCRETE (*MAT_084) |
Only Type 84 includes rate effects. Model is a smeared crack, smeared rebar
model implemented in the 8-node single integration point continuum
element. Note: Material Type 84 and Type 85
|
| *MAT_WOOD (*MAT_143) |
Wood material. Note: Material Type 143
|
| *MAT_WOOD_FIR (*MAT_143_FIR) |
Wood material. Note: Material Type 143
|
| *MAT_WOOD_OPTION | Transversely isotropic material and is available for solid
elements. Note: Material Type 143
|
| *MAT_WOOD_PINE (*MAT_143_PINE) |
Wood material. Note: Material Type 143
|
| *MAT_WTM_STM | Anisotropic-viscoplastic material model. Note: Material Type
135
|
| *MAT_WTM_STM_PLC (*MAT_135_PLC) |
Anisotropic material. Note: Material Type 135PLC
|
| *MAT_1DOF_GENERALIZED_SPRING (*MAT_146) |
Linear or spring damper that allows different degrees of freedom at two nodes
to be coupled. Note: Material Type 146
|
| *MAT_3-PARAMETER_BARLAT (*MAT_036) |
Used for modeling sheets with anisotropic materials under plane stress
conditions. Note: Material Type 36
|
| *MAT_3-PARAMETER_BARLAT_NLP (*MAT_036_NLP) |
Used for modeling sheets with anisotropic materials under plane stress
conditions. Note: Material Type 36
|
Nastran Cards
The PCOMP card contains all information regarding composite materials, including the
orientation of the longitudinal direction of each ply. The material longitudinal axis of the
element is obtained either by rotating the x axis of the element THETA degree (from THETA
field in the element card) counterclockwise, or by projecting the x axis of a system (from
MCID field in the element card) onto the surface of the element. Each ply orientation, shown
a as ply direction, is obtained by rotating the material longitudinal axis THETAi degree
(from the THETAi field in the PCOMP card) counterclockwise.
| Card | Description |
|---|---|
| MAT1 | Defines the material properties for linear isotropic materials. |
| MAT2 | Defines the material properties for linear anisotropic materials for two-dimensional elements. |
| MAT4 | Defines the constant or temperature-dependent thermal material properties for conductivity, heat capacity, density, dynamic viscosity, heat generation, reference enthalpy, and latent heat associated with a single-phase change. |
| MAT5 | Defines the thermal material properties for anisotropic materials. |
| MAT8 | Defines the material property for an orthotropic material for isoparametric shell elements. |
| MAT9 | Defines the material properties for linear, temperature-independent, anisotropic materials for solid isoparametric elements. |
| MAT10 | Defines material properties for fluid elements in coupled fluid-structural analysis. |
| MATEP | Specifies elasto-plastic material properties to be used for large deformation analysis. Used in SOL 600 only. |
| MATHE | Specifies hyperelastic (rubber-like) material properties for nonlinear (large strain and large rotation) analysis in SOL 600 and MD Nastran SOL 400 only. |
| MATHP | Specifies material properties for use in fully nonlinear (i.e., large strain and large rotation) hyperelastic analysis of rubber-like materials (elastomers). |
| MATG | Specifies gasket material properties to be used in SOL 600 and MD Nastran SOL 400. |
| MATHP | Specifies material properties for use in fully nonlinear (that is, large strain and large rotation) hyperelastic analysis of rubber-like materials (elastomers). |
| MATEP | Specifies elasto-plastic material properties. |
| MATS1 | Specifies stress-dependent material properties for use in applications involving nonlinear materials. |
| MATT1 | Specifies temperature-dependent material properties on MAT1 entry fields via TABLEMi entries. |
| MATT2 | Specifies temperature-dependent material properties on MAT2 entry fields via TABLEMj entries. |
| MATT4 | Specifies table references for temperature-dependent MAT4 material properties. |
| MATT8 | Specifies temperature-dependent material properties on MAT8 entry fields via TABLEMi entries. |
| MATT9 | Specifies temperature-dependent material properties on MAT9 entry fields via TABLEMk entries. |
OptiStruct Cards
| Card | Description |
|---|---|
| MAT1 | Defines the material properties for linear,
temperature-independent, and isotropic materials. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT2 | Defines the material properties for linear,
temperature-independent, and anisotropic materials for two-dimensional
elements. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT3 | Defines the material properties for linear,
temperature-independent, and orthotropic materials used by the CTAXI and CTRIAX6
axisymmetric elements. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT4 | Defines constant thermal material properties for
conductivity, density, and heat generation. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT5 | Defines the thermal material properties for anisotropic
materials. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT8 | Defines the material properties for linear
temperature-independent orthotropic material for two-dimensional elements. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT9 | Defines the material properties for linear,
temperature-independent, and anisotropic materials for solid elements. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MAT9ORT | Defines the material properties for linear,
temperature-independent, and orthotropic materials for solid elements in terms of
engineering constants. Note: Bulk Data Entry
|
| MAT10 | Defines material properties for fluid elements in coupled
fluid-structural analysis. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MATFAT | Defines material properties for fatigue
analysis. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MATF1 | Specifies frequency-dependent material properties on
MAT1 entry fields via TABLEDi
entries. Note: Bulk Data Entry
|
| MATF2 | Specifies frequency-dependent material properties on
MAT2 entry fields via TABLEDi
entries. Note: Bulk Data Entry
|
| MATF8 | Specifies frequency-dependent material properties on
MAT8 entry fields via TABLEDi
entries. Note: Bulk Data Entry
|
| MATF9 | Specifies frequency-dependent material properties on
MAT9 entry fields via TABLEDi
entries. Note: Bulk Data Entry
|
| MATF10 | Specifies frequency-dependent material properties on
MAT10 entry fields via TABLEDi
entries. Note: Bulk Data Entry
|
| MATHE | Defines material properties for nonlinear hyperelastic
materials. The Polynomial form is available and various material types can be
defined by specifying the corresponding coefficients. Note: Bulk Data Entry
|
| MATPE1 | Defines the material properties for poro-elastic
materials. Note: Bulk Data Entry
Exported in large field format by optistructlf template. |
| MATT1 | Specifies temperature-dependent material properties on
MAT1 entry fields via TABLEMi
entries. Note: Bulk Data Entry
|
| MATT2 | Specifies temperature-dependent material properties on
MAT2 entry fields via TABLEMj
entries. Note: Bulk Data Entry
|
| MATT4 | Defines temperature-dependent material properties for the
corresponding MAT4 Bulk Data Entry fields via
TABLEMi entries. Note: Bulk Data Entry
|
| MATT5 | Defines temperature-dependent material properties on
MAT5 entry fields via TABLEMi
entries. Note: Bulk Data Entry
|
| MATT8 | Specifies temperature-dependent material properties on
MAT8 entry fields via TABLEMi
entries. Note: Bulk Data Entry
|
| MATT9 | Specifies temperature-dependent material properties on
MAT9 entry fields via TABLEMk
entries. Note: Bulk Data Entry
|
| MGASK | Defining the material properties for gasket-like
materials. Note: Bulk Data Entry
|
PAM-CRASH Cards
| Card | Description |
|---|---|
| MAT_SECURE | |
| PLY | |
| TYPE 1 | Elastic Plastic Note: Post-Yield behavior - defined by Yield Stress list
box.
|
| TYPE 2 | Crushable Foam |
| TYPE 5 | Linear Viscoelastic |
| TYPE 7 | Isotropic - Elastic-Plastic-Hydrodynamic |
| TYPE 11 | Blatz-Ko Rubber |
| TYPE 16 | Elastic-Plastic with Damage |
| TYPE 17 | Hyperelastic Mooney-Rivlin Note: To enter LTC on card 4, a curve must
exist.
|
| TYPE 18 | Hyperelastic Hart-Smith |
| TYPE 20 | Inelastic Crushable Foam |
| TYPE 21 | Elastic Foam Note: Curve definition may be defined with points or with curve
entities.
|
| TYPE 22 | Non-linear Viscoelastic |
| TYPE 25 | Solid for Foam Side Impact Barriers |
| TYPE 26 | Elastic Plastic with Gurson Damage Model |
| TYPE 30 | Unidirectional Composite Bi-Phase Note: To enter IPLY on card 3, a material
collector with a defined PLY_DATA card image must
exist.
|
| TYPE 31 | Unidirectional Composite Non-linear Note: To enter IPLY on card 3, a material
collector with a defined PLY_DATA card image must
exist.
|
| TYPE 36 | Elastic/Stiffening - Plastic with Failure |
| TYPE 37 | Viscoelastic Ogden Rubber |
| TYPE 41 | Improved Side Impact Barrier TYPEerial Note: Full material input and
simplified material input are available.
|
| TYPE 42 | |
| TYPE 45 | General Non-linear Strain Rate Dependent |
| TYPE 52 | Elastic-Plastic Solid with Fracture Criteria |
| TYPE 61 | Elastic-Plastic 8 Node Thick Shell |
| TYPE 62 | Elastic-Plastic for 8-Node Thick Shell Elements with Total Lagrangian Formulation |
| TYPE 71 | Elastic-Plastic with EWK Damage and Failure |
| TYPE 99 | Null TYPEerial for Solid |
| TYPE 100 | Null TYPEerial |
| TYPE 101 | Elastic |
| TYPE 102 | Elastic Plastic |
| TYPE 103 | Elastic Plastic |
| TYPE 105 | Elastic Plastic with Isotropic Damage |
| TYPE 106 | Elastic Plastic with Anisotropic Damage |
| TYPE 107 | |
| TYPE 108 | Anisotropic Elastic Plastic |
| TYPE 109 |
Note: TYPE 109 data will not be exported (not valid for PAM 2006 and
above).
|
| TYPE 110 | Super Elastic |
| TYPE 115 | Elastic Plastic with Gurson Damage |
| TYPE 116 | Elastic Plastic with Isotropic Damage |
| TYPE 117 |
Note: Type 117 data will not be exported (not valid for Pam 2006 and
above).
|
| TYPE 118 | Anisotropic Elastic Plastic |
| TYPE 121 | CRASH/FORMING, Non-linear Visco Elastic |
| TYPE 126 | Glass |
| TYPE 128 | Anisotropic Elastic Plastic |
| TYPE 130 | Multilayered Shell Elements Note: To specify a ply database, a material
collector with the PLY_DATA card image must exist in the
database. Ply auxiliary variables default to blank and can be
overridden.
|
| TYPE 131 | Multilayered Shell Elements Note: To specify a ply database, a material
collector with the PLY_DATA card image must exist in the
database. Ply auxiliary variables default to blank and can be
overridden.
|
| TYPE 132 | Multilayered Shell Elements Note: To specify a ply database, a material
collector with the PLY_DATA card image must exist in the
database. Ply auxiliary variables default to blank and can be
overridden.
|
| TYPE 143 | Elastic-Plastic with Elastic Stiffening |
| TYPE 150 | Layered TYPEerials for Membrane Elements |
| TYPE 151 | Fabric Membrane Elements with Non Linear Fibre |
| TYPE 161 | Elastic for 4-Node Thick Shell |
| TYPE 162 | Elastic Plastic with 4-Node Thick Shell |
| TYPE 171 | Elastic Plastic with EWK Damage |
| TYPE 200 | Null TYPERerial |
| TYPE 201 | Elastic Note: Card fields vary depending upon the element type selected (beam
or bar).
|
| TYPE 202 | Elastic-Plastic Note: Card fields vary depending upon the element type
selected. Post-Yield behavior - defined by Yield Stress list box.
|
| TYPE 203 | Nonlinear for BAR Note: Number of editable fields depends on NLOAD, NUNLD, and
NRELD.
|
| TYPE 204 | Nonlinear for BAR/DASHPOT Note: Force-deflection curve specification requires
existence of curves in the database.
|
| TYPE 205 | Nonlinear Tension Only Barn Note: NLOAD can be set to 0 or to a curve
(right-click field label to reset NLOAD curve selection). Other fields for
material type 205 depend on the value of NLOAD.
|
| TYPE 212 | Elastic-Plastic for Beam Elements Note: Post-Yield behavior - defined by Yield
Stress list box.
|
| TYPE 213 | Elastic-Plastic for Beam Elements Note: Post-Yield behavior - defined by Yield
Stress list box. Specification of the cross section description through the list
box affects the layout of cards 8 through NIPS 8.
|
| TYPE 214 | Global Beam Column Note: Curves must exist in the model before specifying
curve fields.
|
| TYPE 220 | Nonlinear 6-DOF Spring/Dashpot Note: Curves must exist in the model before
specifying curve fields.
|
| TYPE 221 | Spherical Joint Elements Note: Curves must exist in the model before
specifying curve fields.
|
| TYPE 222 | Flexion Torsion Joint Elements Note: Curves must exist in the model before
specifying curve fields.
|
| TYPE 223 | Nonlinear 6-DOF Spring-Beam Elements Note: Curves must exist in the model
before specifying curve fields.
|
| TYPE 224 | 6-DOF Penalty Spring Beam Elements Note: 6-DOF penalty spring beam
elements
|
| TYPE 230 | KineTYPEic Joint Elements Note: Curves must exist in the model before
specifying curve fields.
|
| TYPE 301 | SLINK, ELINK elements or TIED interface. |
| TYPE 302 | PLINK elements. |
| TYPE 303 | LLINK elements |
| TYPE 304 | TIED Interfaces |
| PLYDATA | Only TSAI-WU failure criterion supported |
Permas Cards
| Card | Description |
|---|---|
| $COMPRESS | Fluid compressibility |
| $CONDUCTIVITY | Heat conductivity |
| $DAMPING | Structural damping |
| $DENSITY | Material density |
| $DIELECTRIC | Definition of dielectricity. |
| $ELASTIC | Linear elastic material data. |
| $ELCONDUCT | Definition of electric conductivity. |
| $ENTER MATERIAL | Material input bracket header line. |
| $FLDENS | Definition of fluid material density. |
| $FLUID | Opens the bracket for definition of a fluid material. |
| $GASKET | Definition of material for gaskets. |
| $GSKLOAD | Definition of the loading behavior for gasket material. |
| $GSKUNLOAD | Definition of the unloading behavior for gasket material. |
| $HARDENING | Hardening |
| $HEATCAP | Heat capacity |
| $MATERIAL | Definition of homogenous material. |
| $PERMEABILITY | Definition of magnetic permeability. |
| $PLASTIC | Plasticity data |
| $SURFABS | Definition of absorption at the boundary surface of a fluid. |
| $THERMEXP | Thermal expansion coefficients |
| $VOLDRAG | Definition of volumetric drag of a fluid. |
| $YIELD | Yield limit |
Radioss Cards
Radioss allows you to program your own materials that can be used in a simulation. Unsupported Radioss materials and user defined Radioss materials are assigned the MAT_UNSUPPORTED card image.
Engineering Solutions imports unsupported materials with the MAT_UNSUPPORTED card image, and preserves their corresponding IDs and associated components.
In the MAT_UNSUPPORTED card image, all material sub-options, parameters, and data lines are supported as simple text. Engineering Solutions does not check the validity or syntax of any data in this mode. You must manually check the validity of the data. No editing, updating, or review of the material data is intended. Also time step calculation and mass calculation are not available for the component that refers to this material.
| Card | Description |
|---|---|
| /ALE/MAT | Describes the ALE material. Note: Block Format Keyword
|
| /MAT/LAW12 (3D_COMP) | Describes a solid material using the Tsai-Wu
formulation that is usually used to model composites. This material is assumed to be
3D orthotropic-elastic before the Tsai-Wu criterion is reached. The material becomes
nonlinear afterwards. The Tsai-Wu criterion can be set dependent on the plastic work
and strain rate in each of the orthotropic directions and in shear to model material
hardening. Stress based orthotropic criterion for brittle damage and failure is
available. This material is a generalization and improvement of /MAT/LAW14
(COMPSO). Note: Block Format Keyword
|
| /MAT/B-K-EPS | Describes the boundary conditions material in flow
analysis (ALE or EULER). It is based on boundary material /MAT/LAW11
(BOUND) activating boundary turbulence modeling and adding 2 input lines
for k -
parameters. It is compatible for 2D and 3D analysis. It is not compatible with
Multi-material ALE laws, LAW37 (BIMAT) and /MAT/LAW51
(MULTIMAT). Note: Block Format Keyword
|
| /MAT/LAW57 (BARLAT3) | Describes plasticity hardening defined by a user
function and can be used only with shell elements. This is an elasto-plastic
orthotropic law for modeling anisotropic materials in forming processes especially
aluminum alloys. This material law must be used with property set type
/PROP/TYPE9 (SH_ORTH) or /PROP/TYPE10
(SH_COMP). Note: Block Format Keyword
|
| /MAT/LAW20 (BIMAT) | ALE multi-material law for 2D analysis. Note: Block Format Keyword
|
| /MAT/LAW37 (BIPHAS) | Describes the hydrodynamic bi-material liquid gas
material. It is not recommended to use this multi-material laws (LAW37) with
Radioss single precision engine. Note: Block Format Keyword
|
| /MAT/LAW34 (BOLTZMAN) | Describes the Boltzmann (visco-elastic) material.
This law is applicable only for solid elements and can be used to model polymers and
elastomers. Note: Block Format Keyword
|
| /MAT/LAW11 (BOUND) | Describes the boundary conditions material in flow
analysis (ALE or EULER). It is compatible for 2D and 3D analysis. It is not
compatible with Multi-Material ALE laws, LAW37 (BIMAT) and
/MAT/LAW51 (MULTIMAT). In case of turbulence, activate boundary
turbulence modeling using /MAT/B-K-EPS and input κ -
boundary conditions. Note: Block Format Keyword
|
| /MAT/LAW15 (CHANG) | Models composite shell elements, similar to LAW25.
The plastic behavior is based on the Tsai-Wu criteria (/MAT/LAW25
(COMPSH) for Tsai-Wu description) and failure is based on the
Chang-Chang failure criterion is used. Note: Block Format Keyword
|
| /MAT/LAW25 (COMPSH) | Two variations of the same material LAW25 are
implemented:Tsai-wu formulation and CRASURV formulation. Note: Block Format Keyword
|
| /MAT/LAW14 (COMPSO) | Describes an orthotropic solid material using the
Tsai-Wu formulation that is mainly designed to model uni-directional composites.
This material is assumed to be 3D orthotropic-elastic before the Tsai-Wu criterion
is reached. The material becomes nonlinear afterwards. The nonlinearity in direction
3 is the same as that in direction 2 to represent the behavior of a composite matrix
material. The Tsai-Wu criterion can be set dependent on the plastic work and strain
rate in each of the orthotropic directions and in shear to model material hardening.
Stress based orthotropic criterion for brittle damage and failure is available.
/MAT/LAW12 (3D_COMP) is an improved version of this material
and should be used instead of LAW14. Note: Block Format Keyword
|
| /MAT/LAW24 (CONC) | Models brittle elastic-plastic behavior of
reinforced concrete. The law assumes that the two failure mechanisms are tensile
cracking and compressive crushing of the concrete material. This keyword is
compatible only with solid elements. Note: Block Format Keyword
|
| /MAT/LAW59 (CONNECT) | Describes the Connection material, which can be used
to model spotweld, welding line, glue, or adhesive layers in laminate composite
material. Elastic and elastoplastic behavior in normal and shear directions can be
defined. The curves that represent plastic behavior can be specified for different
strain rates. This material is applicable only to solid hexahedron elements
(/BRICK) and the material time-step does not depend on element
height. Note: Block Format Keyword
|
| /MAT/LAW68 (COSSER) | Describes the honeycomb material. Note: Block Format Keyword
|
| /MAT/LAW44 (COWPER) | The Cowper-Symonds law models an elasto-plastic
material. The basic principle is the same as the standard Johnson-Cook model; the
only difference between the two laws lies in the expression for strain rate effect
on flow stress. Note: Block Format Keyword
|
| /MAT/LAW22 (DAMA) | This law is identical to Johnson-Cook material
(/MAT/LAW2), except that the material undergoes damage if
plastic strains reach a user-defined value (
). This law can be applied to both shell and solid
elements. Note: Block Format Keyword
|
| /MAT/LAW21 (DPRAG) | This law, based on Drücker-Prager yield criteria, is
used to model materials with internal friction such as rock-concrete. The plastic
behavior of these materials is dependent on the pressure in the material. This law
is similar to LAW10 (/MAT/LAW10 (DRAGP1)); the only difference
being that in this law, the pressure is input as a user-defined function of
volumetric strain. This law is compatible only with solid elements. Note: Block Format Keyword
|
| /MAT/LAW10 (DPRAG1) | This law, based on Drücker-Prager yield criteria, is
used to model materials with internal friction such as rock-concrete. The plastic
behavior of these materials is dependent on the pressure in the material. This law
is similar to LAW21 (/MAT/LAW21 (DRAGP)); the only difference
being that in this law, the pressure is defined as a cubic function of volumetric
strain, and hence requires the input of certain coefficients. This law is compatible
only with solid elements. Note: Block Format Keyword
|
| /MAT/LAW1 (ELAST) | Defines an isotropic, linear elastic material using
Hooke's law. This law represents a linear relationship between stress and strain. It
is available for truss, beam (type 3 only), shell and solid elements. Note: Block Format Keyword
|
| /MAT/LAW65 (ELASTOMER) | Describes non-linear elastoplastic material with
strain rate dependent loading and unloading behavior. Note: Block Format Keyword
|
| /MAT/LAW58 (FABR_A) | Describes a hyperelastic anisotropic fabric
material. It uses an anisotropic coordinate system with anisotropy angle, following
element deformation. The material formulation provides coupling between warp and
weft directions in order to reproduce physical interaction between fibers. The shear
degree of freedom is fully decoupled from the translational degrees of freedom.
Optionally, nonlinear stress-strain curves for loading and unloading can be
specified for warp, weft directions and in shear. Note: Block Format Keyword
|
| /MAT/LAW19 (FABRI) | Defines an elastic orthotropic material and is
available only for shell elements. It is used to model airbag fabrics. Note: Block Format Keyword
|
| /MAT/LAW33 (FOAM_PLAS) | Models a visco-elastic plastic foam material. This
law is applicable only for solid elements and is typically used to model low
density, closed cell polyurethane foams such as impact limiters. Note: Block Format Keyword
|
| /MAT/LAW70 (FOAM_TAB) | Describes the visco-elastic foam tabulated material.
This material law can be used only with solid elements. Note: Block Format Keyword
|
| /MAT/LAW35 (FOAM_VISC) | Describes a visco-elastic foam material using
Generalized Maxwell-Kelvin-Voigt model where viscosity is based on Navier equations.
This law is applicable only for shell and solid elements and can be used for open
cell foams, polymers, elastomers, seat cushions and dummy paddings. Note: Block Format Keyword
|
| /MAT/GAS | Describes the gas molecular weight and specific heat
coefficients. Note: Block Format Keyword
|
| /MAT/LAW16 (GRAY) | This material law is based on Gray EOS and
Johnson-Cook yield criteria. Note: Block Format Keyword
|
| /MAT/LAW52 (GURSON) | This law is based on the Gurson constitutive law,
which is used to model visco-elastic-plastic strain rate dependent porous
metals. Note: Block Format Keyword
|
| /MAT/LAW63 (HANSEL) | This law describes the trip steel plastic material.
This material law can be used only with shell elements. Note: Block Format Keyword
|
| /MAT/LAW32 (HILL) | Describes the Hill orthotropic plastic material. It
is applicable only to shell elements. This law differs from LAW43
(HILL_TAB) only in the input of yield stress. Note: Block Format Keyword
|
| /MAT/LAW72 (HILL_MMC) | Describes the anisotropic hill material with a
modified Mohr fracture criteria. This law is available for shell and
solid. Note: Block Format Keyword
|
| /MAT/LAW43 (HILL_TAB) | Describes the Hill orthotropic material and is
applicable only to shell elements. This law differs from LAW32
(HILL) only in the input of yield stress (here it is defined by a user
function). Note: Block Format Keyword
|
| /MAT/LAW73 | Describes the Thermal Hill orthotropic material and
is applicable only to shell elements. This law differs from /MAT/LAW43
(HILL_TAB) by the fact that yield stress not only depends on strain rate
and plastic strain, but also on temperature (it is defined by a user
table). Note: Block Format Keyword
|
| /MAT/LAW28 (HONEYCOMB) | Describes a three dimensional nonlinear
elasto-plastic material, usually used to model honeycomb or foam material. Nonlinear
elasto-plastic behavior can be specified for each orthotropic direction and shear as
function of strain or volumetric strain. All degrees of freedom are uncoupled and
the material is fully compressible. Tension and shear strain based failure criteria
can be specified. Note: Block Format Keyword
|
| /MAT/LAW4 (HYD_JCOOK) | Represents an isotropic elasto-plastic material using
the Johnson-Cook material model. This model expresses material stress as a function
of strain, strain rate and temperature. This material may account for the nonlinear
dependence between pressure and volumetric strain when corresponding equation of
state is specified. A built-in failure criterion based on the maximum plastic strain
is available. This material law is compatible with solid elements only. Note: Block Format Keyword
|
| /MAT/LAW3 (HYDPLA) | Represents an isotropic elasto-plastic material using
the Johnson-Cook material model. This model expresses material stress as a function
of strain and may account for the nonlinear dependence between pressure and
volumetric strain when corresponding equation of state is specified. A built-in
failure criterion based on the maximum plastic strain is available. This material
law is compatible with solid elements only. Note: Block Format Keyword
|
| /MAT/LAW6 (HYDRO) | Describes the hydrodynamic viscous fluid
material using a polynomial EOS. Note: Block Format Keyword
|
| /MAT/LAW79 (JOHN_HOLM) | Describes the behavior of brittle materials, such as
ceramics and glass. The implementation is the second Johnson Holmquist model:
JH-2. Note: Block Format Keyword
|
| /MAT/LAW5 (JWL) | Describes the Jones-Wilkins-Lee EOS for detonation
products of high explosives. Note: Block Format Keyword
|
| /MAT/LAW6 (K-EPS) | Describes the k -
turbulence viscous material for fluid. Note: Block Format Keyword
|
| /MAT/LAW40 (KELVINMAX) | Describes the generalized Maxwell-Kelvin material.
This law can only be used with solid elements. Note: Block Format Keyword
|
| /MAT/LAW66 | Models an isotropic tension-compression
elasto-plastic material law using user-defined functions for the work-hardening
portion of the stress-strain (plastic strain vs. stress). This law can be defined
for compression and tension. Note: Block Format Keyword
|
| /MAT/LAW69 | This law (extension of /MAT/LAW42
(OGDEN)) defines a hyperelastic and incompressible material specified
using the Ogden, Mooney-Rivlin material models. It is generally used to model
incompressible rubbers, polymers, foams, and elastomers. Material parameters are
computed from engineering stress-strain curve from uniaxial tension and compression
tests. It is used with shell and solid elements. Note: Block Format Keyword
|
| /MAT/LAW74 | Describes the Thermal Hill orthotropic 3D material
and is applicable only to solid elements. The yield stress may depend on strain
rate, or on both strain rate and temperature. Note: Block Format Keyword
|
| /MAT/LAW77 | This open cell foam material law is a generalization
of LAW70. It accounts for a non-viscous compressible ideal gas
flow inside of the foam and its interaction with the foam structure. ALE simulation
of the gas flow and Lagrangian simulation of the foam deformation is performed on
the same elements system. Interaction between the gas flow and the structure is
through Darcy law and direct application of the gas pressure to the
structure. Note: Block Format Keyword
|
| /MAT/LAW78 | This law is the Yoshida-Uemori model for describing
the large-strain cyclic plasticity of metals. The law is based on the framework of
two surfaces theory: the yielding surface and the bounding surface. During the
plastic deformation, a yield surface will move within the bounding surface and will
never change its size, and the bounding surface can change both in size and
location. The plastic-strain dependency of the Young's modulus and the
work-hardening stagnation effect are also taken into account. Concerning SPH, it is
compatible with solid only, this can be verified with the /SPH/WavesCompression
test. The solid version is only isotropic. The shell version is anisotropic based on
Hill criterion. Note: Block Format Keyword
|
| /MAT/LAW80 | Models the ultra-high strength steel behavior at
high temperatures and the phase transformation phenomena from austenite to ferrite,
pearlite, bainite and martensite during cooling. Note: Block Format Keyword
|
| /MAT/LAW81 | This law is based on Drücker-Prager yield criteria
with cap. It has a strain-hardening cap model based on the principles of Foster.
Plasticity has an isotropic hardening. Failure surface is limited to the standard
linear Drücker-Prager relation, with symmetry around the pressure axis. This law is
LAG, ALE and EULER compatible. Note: Block Format Keyword
|
| /MAT/LAW82 | Defines the Ogden material. This law is compatible
with solid and shell elements. In general it is used to model polymers and
elastomers. Note: Block Format Keyword
|
| /MAT/LAW83 | Describes the Connection material, which can be used
to model spotweld, welding line, glue, or adhesive layers in laminate composite
material. Elastic and elastoplastic behavior can be defined. The plastic behavior of
the material can be coupled in normal and shear directions for corresponding
strain-rates. This material is applicable only to solid hexahedron elements
(/BRICK) and the material time-step does not depend on element
height. Note: Block Format Keyword
|
| /MAT/LAW88 | Represents the behavior of a hyper-elastic material
with strain rate effects. This law is generally used to model incompressible
rubbers, polymers, foams, and elastomers. It is defined by a family of stress vs
strain curves at different strain rates. Unloading can be represented using an
unloading function or by providing hysteresis and shape factor inputs to a damage
model based on energy. This law is only compatible with solid elements. Note: Block Format Keyword
|
| /MAT/LAW90 | Describes the visco-elastic foam tabulated material.
The material can only be used with solid elements. Note: Block Format Keyword
|
| /MAT/LAW93 | Describes the orthotropic elastic behavior material
with Hill plasticity and is applicable only to shell elements and must be used with
property set /PROP/TYPE11, /PROP/TYPE17, /PROP/TYPE51, and /PROP/PCOMPP. Note: Block Format Keyword
|
| /MAT/LAW94 | Describes the YEOH material model, which can be used
to model hyper elastic behavior. This law is only compatible with solid
elements. Note: Block Format Keyword
|
| /MAT/LAW95 | Describes the BERGSTROM-BOYCE non-linear
viscoelastic material model. It is a constitutive model for predicting the
non-linear time dependency of elastomer like materials. This law is only compatible
with solid elements. Note: Block Format Keyword
|
| /MAT/LAW97 | Describes the Jones-Wilkins-Lee-Baker EOS for
detonation products of high explosives. Note: Block Format Keyword
|
| /MAT/LAW41 (LEE-TARVER) | Describes detonation products using an ignition and
growth model of a reactive material. The Lee-Tarver model is based on the assumption
that ignition starts at local hot spots in the passage of shock front and grows
outward from these sites. The reaction rate is controlled by the pressure and the
surface area as in a deflagration process. Note: Block Format Keyword
|
| /MAT/LAW46 (LES_FLUID) | Describes the viscous fluid material with sub-grid
scale viscosity. Note: Block Format Keyword
|
| /MAT/LAW51 (MULTIMAT) | Up to four material laws can be defined:
elasto-plastic solid, liquid, gas and detonation products. The material boundaries
inside an element are not explicitly defined, but an anti-diffusive technique is
used to avoid expansion of transition zone (/UPWIND in Radioss Starter Input). Note: Block Format Keyword
|
| /MAT/LAW42 (OGDEN) | Defines a hyperelastic, viscous, and incompressible
material specified using the Ogden, Mooney-Rivlin material models. This law is
generally used to model incompressible rubbers, polymers, foams, and elastomers.
This material can be used with shell and solid elements. Note: Block Format Keyword
|
| /MAT/LAW27 (PLAS_BRIT) | Combines an isotropic elasto-plastic Johnson-Cook
material model with an orthotropic brittle failure model. Material damage is
accounted for prior to failure. Failure and damage occur only in tension. This law
is applicable only for shells. Note: Block Format Keyword
|
| /MAT/LAW23 (PLAS_DAMA) | Models an isotropic elastic plastic material and
combines Johnson-Cook material model with a generalized damage model. The law is
applicable only for solid elements. Note: Block Format Keyword
|
| /MAT/LAW2 (PLAS_JOHNS) | Represents an isotropic elasto-plastic material using
the Johnson-Cook material model. This model expresses material stress as a function
of strain, strain rate and temperature. A built-in failure criterion based on the
maximum plastic strain is available. Note: Block Format Keyword
|
| /MAT/LAW60 (PLAS_T3) | Models an isotropic elasto-plastic material using
user-defined functions for the work-hardening portion of the stress-strain curve
(that is, plastic strain vs. stress) for different strain rates. It is similar to
LAW36, except yield stress is a nonlinear interpolation from the
functions. Note: Block Format Keyword
|
| /MAT/LAW36 (PLAS_TAB) | Models an isotropic elasto-plastic material using
user-defined functions for the work-hardening portion of the stress-strain curve
(for example, plastic strain vs. stress) for different strain rates. Note: Block Format Keyword
|
| /MAT/LAW75 (POROUS) | Describes the P-α porous material model. This
material describes ductile Porous material with Herrmann model. It only works with
8-node brick element and is not compatible with ALE. Note: Block Format Keyword
|
| /MAT/LAW54 (PREDIT) | Describes the predit material. This material law is
only used with /PROP/TYPE36 (PREDIT). Note: Block Format Keyword
|
| /MAT/LAW13 (RIGID) | Models part(s) as rigid bodies. Note: Block Format Keyword
|
| /MAT/LAW76 (SAMP) | Describes a semi-analytical elasto-plastic material
using user-defined functions for the work-hardening portion for tension, compression
and shear (stress as function of strain). Note: Block Format Keyword
|
| /MAT/LAW26 (SESAM) | This ALE material law describes a SESAME tabular
EOS, used with a Johnson-Cook yield criterion. SESAME EOS covers a wide range of
phases including solids, fluids and high temperature/high density plasmas, and the
well-known transitions between these various phases. It requires SESAME tables,
which were developed at Los Alamos National Laboratory in USA. Note: Block Format Keyword
|
| /MAT/LAW49 (STEINB) | Defines an elastic plastic material with thermal
softening. Note: Block Format Keyword
|
| /MAT/LAW18 (THERM) | Describes thermal material. Note: Block Format Keyword
|
| /MAT/LAW53 (TSAI_TAB) | Describes the law that is a uni-directional
orthotropic elasto-plastic law and is only used with solid elements. Note: Block Format Keyword
|
| /MAT/LAW64 (UGINE_ALZ) | Describes the Ugine & Alz trip steel material.
This material law can be used only with shell elements. Note: Block Format Keyword
|
| /MAT/USERij | Describes the user material. Note: Block Format Keyword
|
| /MAT/LAW50 (VISC_HONEY) | Describes the honeycomb material with strain rate
dependency (based on material LAW28 + strain rate dependency). Note: Block Format Keyword
|
| /MAT/LAW62 (VISC_HYP) | Describes the hyper visco-elastic material. This law
is compatible with solid and shell elements. In general it is used to model polymers
and elastomers. Note: Block Format Keyword
|
| /MAT/LAW38 (VISC_TAB) | Describes the visco-elastic foam tabulated material
and can only be used with solid elements. Note: Block Format Keyword
|
| /MAT/LAW0 (VOID) | Defines elements to act as a void, or an empty
space. Note: Block Format Keyword
|
| /MAT/LAW48 (ZHAO) | Describes the Zhao material law used to model an
elasto-plastic strain rate dependent materials. The law is applicable only for
solids and shells. The global plasticity option for shells (N=0 in shell property
keyword) is not available in the actual version. Note: Block Format Keyword
|
| /VISC/PRONY | This is an isotropic visco-elastic Maxwell model
that can be used to add visco-elasticity to certain shell and solid element material
models. The visco-elasticity is input using a Prony series. Note: Block Format Keyword
|
Samcef Cards
| Card | Description |
|---|---|
| .MAT, ANISOTROPIC | Define the properties of one or several materials. |
| .MAT, ISOTROPIC | Define the properties of one or several materials. |
| .MAT, ORTHOTROPIC | Define the properties of one or several materials. |