/DEF_SOLID

Block Format Keyword This keyword is used to set default values for certain parameters in all solid properties and thick shells. The default values defined here will be overwritten by any values entered on the individual property input.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/DEF_SOLID
Isolid Ismstr   Istrain Itetra4 Itetra10 Imas Iframe    

Definitions

Field Contents SI Unit Example
Isolid Solid elements formulation flag. 2
= 0
Set to 1 or 14.
=1
Default if /IMPLICIT is not used in deck.
Standard 8-node solid element, one integration point. Viscous hourglass formulation with orthogonal and rigid deformation modes compensation (Belytschko).
=2
Standard 8-node solid element, one integration point. Viscous hourglass formulation without orthogonality (Hallquist).
=14
Default if /IMPLICIT is used in deck
HA8 locking-free 8-node solid or thick shell elements, co-rotational, full integration, variable number of Gauss points.
=15
HSEPH/PA6 thick shell elements (8-node and 6-node respectively). Co-rotational, under integrated (one Gauss point in the plane) with physical stabilization. Variable number of integration points in thickness direction.
=16
Quadratic 16-node thick shell or Quadratic 20-node solid, full integration, variable number of Gauss points in all directions.
=17
H8C compatible solid full integration formulation.
=18
8-node solid element, Co-rotational, full integration, fixed 2*2*2 Gauss integration points, shear locking-free, Icpre and Ismstr defaults are based on material.
=24
HEPH 8-node solid element. Co-rotational, under-integrated (one Gauss point) with physical stabilization.

(Integer)

  
Ismstr Small strain formulation flag. 3
= 0
Set to 4.
=1
Small strain from time = 0.
=2
Full geometric nonlinearities with possible small strain formulation in Radioss Engine (/DT/Eltyp/Iflag).
=3
Simplified small strain formulation from time =0 (non-objective formulation).
=4 (Default)
Full geometric nonlinearities (/DT/BRICK/CST has no effect).
=10
Lagrange type total strain.
= 11
Total small strain formulation from t= 0.
= 12
Lagrange type total strain with possible switch to total small strain formulation in Radioss Engine (/DT/BRICK/CST).

(Integer)

  
Istrain Computes strains for post-processing flag
= 0
Set to 1.
=1 (Default)
Yes
=2
No

(Integer)

  
Itetra4 4 node tetrahedral element formulation flag.
= 0
Set to 1000.
= 1
Quadratic /TETRA4 formulation with six DOF per node and four integration points.
= 3
Linear /TETRA4 with an average nodal pressure formulation.
= 1000
Linear /TETRA4 formulation with one integration point.

(Integer)

  
Itetra10 10 node tetrahedral element formulation flag.
= 0
Set to 1000.
= 2
Quadratic /TETRA10 formulation with four integration points and the same time step as a /TETRA4 element.
= 1000
Quadratic /TETRA10 formulation with four integration points.

(Integer)

  
Imas Nodal mass distribution (per element) flag.

Only for tetra4 and tetra10 element.

= 0
Set to 2.
=1
Distribution taking into account nodal volume angle.
=2 (Default)
Homogeneous distribution.

(Integer)

  
Iframe Element coordinate system formulation flag.

only for standard 8-node bricks: Isolid=1, 2 or 17.

= 0
Set to 1.
=1 (Default)
Non co-rotational formulation.
=2
Co-rotational formulation.

(Integer)

  

Comments

  1. This card is read only once. Only the first card /DEF_SOLID written in the model is used. The other card /DEF_SOLID is ignored.
  2. Refer to the comments in /PROP/SOLID for more information about these input options.