MAPVAR

MAPVAR

MAPVAR, Option, MatId, IstrtStress, nTenStress, IstrtStrain, nTenStrain, , IstrtVect, nVect
Defines tensors and vectors in user-defined state variables for rezoning and in 2-D to 3-D analyses.

SOLUTION: Rezoning

Option

DEFINE	—	Define variables for the specified `MatId` material ID (default).
LIST	—	List the defined variables for the specified `MatId` material ID.

MatId

The material ID for the state variables which you are defining (Option = DEFINE) or listing (Option = LIST).

When Option = LIST, the default value for this argument is ALL (which lists all defined variables). When Option = DEFINE, you must explicitly specify a material ID.

IstrtStress

The start position of stress-like tensors in the state variables. This value must be either a positive integer or 0 (meaning no stress-like tensors).

nTenStress

The number of stress-like tensors in the state variables. This value must be either a positive integer (or 0), and all stress-like tensors must be contiguous.

IstrtStrain

The start position of strain-like tensors in the state variables. This value must be either a positive integer or 0 (meaning no strain-like tensors).

nTenStrain

The number of strain-like tensors in the state variables. This value must be either a positive integer (or 0), and all strain-like tensors must be contiguous.

IstrtVect

The start position of vectors in the state variables. This value must be either a positive integer or 0 (meaning no vectors).

nVect

The number of vectors in the state variables. This value must be either a positive integer (or 0), and all vectors must be contiguous.

Notes

The MAPVAR command identifies the tensors and vectors in user-defined state variables (TB,STATE) for user-defined materials (TB,USER and UserMat or UserMatTh) or user-defined creep laws (TB,CREEP,,,,100 and UserCreep).

To handle large-rotation effects and to correctly differentiate between tensor- and vector-mapping, specify the start position of specific state variables. For stress-like tensors, the shear components saved as state variables are the tensor component. For strain-like tensors, the shear components saved as state variables are twice the tensor components. Therefore, issue the MAPVAR command to define the stress-like and strain-like tensors individually. The command ensures that user-defined state variables are mapped correctly during rezoning and in 2-D to 3-D analyses.

In a rezoning operation, MAPVAR must be issued after remeshing (REMESH,FINISH) but before mapping (MAPSOLVE).

Menu Paths

This command cannot be accessed from a menu.