Dear @akhemka,nThank you so much for answering me.nI saw this post before but you know my problem is this(I explain this below): nI put my samples under a compression test and my sample broke after several seconds under loading. This process gives me a force-displacement( the black line). My problem is about how to simulate fraction. If you see my figure that I uploaded above, in 8% strain sample broke and the force-displacement curve falls down. and some distortion and ups and down can be seen in this curve. I don't know how to make close my figure to the experimental one. nI can just simulate up to the plastic region and I do not know how to simulate the fracture section. Can you guide me on how can I don't that section in ansys?nShould I add sth related to fracture analysis to static structural analysis?.