Changes in Abaqus user subroutines

This section summarizes the changes and the additions to user subroutines that you can use in an Abaqus model.

UMIXMODEFATIGUE
You can now use this user subroutine in stress intensity factor–based form, where the corresponding stress intensity factor component rather than the strain energy release rate component is passed in for information. First available in the Abaqus 2022 FD01 (FP.2205) release.
VSDVINI

User subroutine to define initial solution-dependent state variable fields. First available in the Abaqus 2022 FD01 (FP.2205) release.