{"id":303802,"date":"2023-08-29T09:03:46","date_gmt":"2023-08-29T09:03:46","guid":{"rendered":"\/forum\/forums\/reply\/303802\/"},"modified":"2023-08-29T09:03:46","modified_gmt":"2023-08-29T09:03:46","slug":"303802","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/303802\/","title":{"rendered":"Reply To: Impact simulation: help required interpreting results."},"content":{"rendered":"<p>&lt;p&gt;Many thanks to you both for your responses.&lt;\/p&gt;&lt;p&gt;1) I am taking the strain-at-break value from the 23&deg;C graph on page 6 of the following datsheet (screenshot also pasted below) <a href=\"http:\/\/www.foomx.com\/static\/pdf\/CrastinLW9020NC010_en.pdf\">http:\/\/www.foomx.com\/static\/pdf\/CrastinLW9020NC010_en.pdf<\/a> I believe this value would have been obtained under the conditions you describe, Armin.&lt;\/p&gt;&lt;p&gt;2)&nbsp; In the absence of more detailed information, I am assuming homogenous behaviour of the material.&lt;\/p&gt;&lt;p&gt;3) The Multilinear Isotropic Hardening model is approximated from the following graph. The graph looks to become nonlinear from roughly about the 65 MPa stress\/1% strain point, so I have assumed that plastic deformation begins from there. I have just noticed that my model is actually slightly incomplete (X-axis for plastic strain should perhaps extend to nearer 2.2%?), but I certainly wouldn&#8217;t expect strain to reach so high as 13% as indicated by the simulation results.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/29-08-2023-1693298551-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-303802","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/303802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/303802\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=303802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}