This section describes how you can specify general material data. The following topics are covered:

• “Specifying material mass density,” Section 12.8.1

• “Specifying solution-dependent state variables,” Section 12.8.2

• “Regularizing user-defined material data in Abaqus/Explicit,” Section 12.8.3

• “Defining constants for a user material,” Section 12.8.4

• “Defining field variables at a material point,” Section 12.8.5

• “Specifying the number of user variables,” Section 12.8.6

• “Density,” Section 21.2.1 of the Abaqus Analysis User's Guide

• “User subroutines: overview,” Section 18.1.1 of the Abaqus Analysis User's Guide

• “Regularizing user-defined data in Abaqus/Explicit and Abaqus/CFD” in “Material data definition,” Section 21.1.2 of the Abaqus Analysis User's Guide

• “User-defined mechanical material behavior,” Section 26.7.1 of the Abaqus Analysis User's Guide

• “User-defined thermal material behavior,” Section 26.7.2 of the Abaqus Analysis User's Guide

• “USDFLD,” Section 1.1.53 of the Abaqus User Subroutines Reference Guide

• “UVARM,” Section 1.1.58 of the Abaqus User Subroutines Reference Guide