/MAT/LAW64 (UGINE_ALZ)
Block Format Keyword This law describes the Ugine & Alz trip steel material. This material law can be used only with shell elements.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/MAT/LAW64/mat_ID/unit_ID or /MAT/UGINE_ALZ/mat_ID/unit_ID | |||||||||
mat_title | |||||||||
E | Cp | ||||||||
D | n | Md | V0 | Vm | |||||
fct_ID0 | fct_ID1 | Fscale0 | Fscale1 | T0 |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
mat_ID | Material
identifier (Integer, maximum 10 digits) |
|
unit_ID | Unit Identifier (Integer, maximum 10 digits) |
|
mat_title | Material
title. (Character, maximum 100 characters) |
|
Initial
density. (Real) |
||
E | Initial Young's
modulus. (Real) |
|
Poisson's
ratio. (Real) |
||
Cp | Specific heat
capacity. Default = 1030 (Real) |
|
D | Material parameter
1. (Real) |
|
n | Material parameter
2. (Real) |
|
Md | Limit martensite
transformation temperature. (Real) |
|
V0 | Material
parameter. (Real) |
|
Vm | Constant martensite
fraction for second yield stress function 0 <
Vm ≤
1. (Real) |
|
fct_ID0 | Yield stress function
identifier for 0 martensite fraction. (Integer) |
|
fct_ID1 | Yield stress function
identifier for Vm
martensite fraction. (Integer) |
|
Fscale0 | Scale factor for yield
function for
fct_ID0. (Real) |
|
Fscale1 | Scale factor for yield
function for fct_ID1. (Real) |
|
T0 | Initial
temperature. (Real) |
Example (Steel)
#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/1
unit for mat
Mg mm s
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#- 2. MATERIALS:
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/LAW64/1/1
Steel
# RHO_I
7.8E-9
# E Nu Cp
210000 .3 460000000
# D n Md V0 Vm
4 3.5 356 .2 .6
# func_ID0 func_ID1 Fscale0 Fscale1 T0
1 2 1 1 323
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#- 3. FUNCTIONS:
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/FUNCT/1
function_1
# X Y
0 250
.001 350
.5 1100
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/FUNCT/2
function_2
# X Y
0 930
.001 1000
.5 1500
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#ENDDATA
/END
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
Comments
- Martensite fraction:
(1) (2) if(3) (4) if(5) - Mechanical behavior:
The yield plastic stress is computed by linear interpolation between two curves fct_ID1 and fct_ID0.
- The temperature is computed assuming
the adiabatic condition (by default the condition is isothermal with
Cp =
1030):
(6) Where, Eint is the internal energy of the element.