ANSYS-USERMAT-Ramberg-Osgood

The following code contain an ANSYS USERMAT subroutine for a plasticity model of 3D solid elements or plane elements in plane strain or axisymmetric stress state. The plasticity model is described by Ramberg-Osgood power law. The main advantage of this model compared to the default ones is it takes into account small plastic strains before reaching the yield stress.
Use instructions and APDL script example to compiling and attaching this library to ANSYS software.