SDVINI

Two test cases are included. The purpose of both tests is to show that the initial conditions of the solution-dependent state variables are interpreted correctly and to show that the solution-dependent state variables can be updated in another user subroutine.

In the first test case six solution-dependent state variables are initialized in user subroutine SDVINI and are subsequently updated in user subroutine UMAT. The problem is a trivial linear elastic, static analysis of a single plane stress element. The analysis is repeated for a plane stress gasket element, and identical results are obtained.

In the second test case two solution-dependent state variables are initialized in user subroutine SDVINI and are subsequently updated in user subroutine FRIC. The expected solution-dependent state variable settings are confirmed in the step-1, increment-1 call to FRIC.