{"id":212454,"date":"2022-04-21T16:51:03","date_gmt":"2022-04-21T16:51:03","guid":{"rendered":"\/forum\/forums\/reply\/212454\/"},"modified":"2022-04-21T16:51:03","modified_gmt":"2022-04-21T16:51:03","slug":"212454","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/212454\/","title":{"rendered":"Reply To: Bilinear kinematic hardening in LS-D"},"content":{"rendered":"

I wanted to say that for the calculation I only have the yield strength, tensile strength, Young’s modulus, Poisson’s ratio, melting temperature and that’s it. And to solve the problem of inserting a tooth into a steel plate, I have to use bilinear kinematic hardening in ls dyna, it takes into account only the yield strength. I could solve the problem in a static formulation and use multilinear kinematic hardening there, but the calculation will take a very long time. In addition, for such a task, a very fine mesh of 0.1-0.3 mm is needed. Therefore, I solve the problem in Ls Dyna. My question is that I want to know from you professionals how accurate is the solution using bilinear kinematic hardening in setting such a problem as inserting a tooth into a steel plate and similar problems. You have a lot of experience in calculations, can you say? I made some tests: ls-dyna + bilinear kinematic hardening st structural + multilinear kinematic hardening with the same mesh and loads. ls-dyna showed a margin of safety of 1.01 st structural showed a margin of safety of 0.7 Now I want to figure out which is more accurate. I would like to solve such a problem in LS-Dyna, because there is a fast solver.<\/p>\n","protected":false},"template":"","class_list":["post-212454","reply","type-reply","status-publish","hentry"],"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