{"id":162756,"date":"2021-10-03T20:37:29","date_gmt":"2021-10-03T20:37:29","guid":{"rendered":"\/forum\/forums\/topic\/nonlinear-static-analysis-with-failure-initiation-and-evolution\/"},"modified":"2021-10-04T04:38:34","modified_gmt":"2021-10-04T04:38:34","slug":"nonlinear-static-analysis-with-failure-initiation-and-evolution","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/nonlinear-static-analysis-with-failure-initiation-and-evolution\/","title":{"rendered":"Nonlinear static analysis with failure initiation and evolution"},"content":{"rendered":"
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In a non linear static analysis in Ansys Mechanical, I have a simple fiber reinforced composite (hexagonal pattern unit cell with circular fibers and surrounding matrix). When I apply a displacement "d" on the face nodes of the model, I am getting different ultimate stress and ultimate strain values for different values of "d". Shouldn’t the ultimate stress and strain values be almost constant regardless of what the applied displacement or strain is? (I am calculating the stress as the total force on the nodes of the face divided by the area of the face). I am using the maximum stress failure criteria with material property degradation. I also have constant time stepping (100 substeps)<\/p>\n","protected":false},"template":"","class_list":["post-162756","topic","type-topic","status-closed","hentry","topic-tag-composite","topic-tag-failure","topic-tag-nonlinear","topic-tag-static","topic-tag-steps-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t