WulfHans

Added test for correctly passing deformation gradient to UMAT interface

3

Added test for correctly passing deformation gradient to UMAT interface (refs #21797) - the UMAT interface needs to account for the fact, that C is row-major and Fortran is column-major...

TensorMechanics: Incorrect stress and strain from ABAQUS UMAT interface

9

## Bug Description I did a simulation of a simple shear test with the UMAT NeoHooke implementation provided by ABAQUS. The expected stresses can be easily computed or just found...

Fix UMAT interface Jacobian

1

## Bug Description As mentioned [here](https://github.com/idaholab/moose/pull/21872), the Jacobian for the UMAT interface is clearly wrong. Issues visible from source code: - row vs column major is ignored - different ordering...

Fix umat interface rotation

3

When passing the stress to the UMAT, the old stress must be passed with rotation. The resulting stress is the cauchy stress, that does not require any additional rotation. This...