Abaqus Keywords Reference Guide  
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*USER DEFINED FIELD
Redefine field variables at a material point.

This material option is used to allow the values of field variables at a material point to be redefined within an increment via user subroutine USDFLD in Abaqus/Standard analyses or user subroutine VUSDFLD in Abaqus/Explicit analyses. If the *USER DEFINED FIELD option is used, it must appear within a *MATERIAL definition (“Material data definition,” Section 21.1.2 of the Abaqus Analysis User's Guide).

Products: Abaqus/Standard  Abaqus/Explicit  Abaqus/CAE  

Type: Model data

Level: Model  

Abaqus/CAE: Property module

References:

Optional parameter:

PROPERTIES

This parameter applies only to Abaqus/Explicit analyses.

Set this parameter equal to the number of properties being entered. The properties are available for use in user subroutine VUSDFLD.

Data lines to define material properties when PROPERTIES is specified: 

First line:

  1. Enter the material properties, eight per line.

Repeat this data line as often as necessary to define all material properties.