{"id":137419,"date":"2021-01-03T23:32:35","date_gmt":"2021-01-03T23:32:35","guid":{"rendered":"\/forum\/forums\/reply\/137419\/"},"modified":"2021-01-03T23:32:35","modified_gmt":"2021-01-03T23:32:35","slug":"137419","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/137419\/","title":{"rendered":"Reply To: Why doesn&#8217;t the load passes through max shear stress direction for ductile materials?"},"content":{"rendered":"<p>ArraynYour original question mentions load path. The load path in a tensile test specimen is from one end to the other in a straight line.  Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. However, the final fracture is not at 45 degrees, but more straight across.n<img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/J4Y8VSV9E5EH\/image.png width=741 height=542 \/><img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/RNDZ87WLM16X\/image.png width=781 height=559 \/>We can simulate necking in ANSYS using a Plasticity material model to simulate the behavior of ductile materials.n<img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/MFKI47ZMK0HV\/a359d16f-151f-4856-b5a4-a99c0047ad1a-necking-5b1-5d.jpg width=451 height=592 \/>The image I used in December labeled brittle fracture may have been from a torsion test, it was not specific.n<\/p>\n","protected":false},"template":"","class_list":["post-137419","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/137419","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\/137419\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=137419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}