Hello,
I would like to define a material which behaves as follows: there is an initial linear elastic behavior (with a defined E-modulus). Then there is a perfectly plastic region at a maximal stress until the plastic strain reaches a determined value. Next, there is a strain softening phase with a plastic modulus and ultimately an indefinite perfectly plastic phase begins when a stress(min) is reached.
How can I implement such a material behavior?
Thanks in advance for the help