Abaqus Release Notes  


14.3 Utility routines to obtain principal stress/strain values and directions in Abaqus/Explicit

Product: Abaqus/Explicit  

Benefits: You can now obtain principal stress/strain values and directions in Abaqus/Explicit using the utility routines VSPRINC and VSPRIND.

Description: Two new utility routines are available in Abaqus/Explicit for calculating principal stress/strain values and principal stress/strain directions from the relevant tensors:

These routines can be called from any Abaqus/Explicit user subroutine that stores stress and strain components according to the convention presented in “Conventions,” Section 1.2.2 of the Abaqus Analysis User's Manual, such as from user subroutine VUMAT.

Reference:

Abaqus User Subroutines Reference Manual