{"id":398247,"date":"2024-12-23T07:04:53","date_gmt":"2024-12-23T07:04:53","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/398247\/"},"modified":"2024-12-23T07:04:53","modified_gmt":"2024-12-23T07:04:53","slug":"398247","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/398247\/","title":{"rendered":"Reply To: Negative Volume Error"},"content":{"rendered":"<p>&lt;p&gt;The time step can be simplified as Time step=&alpha;*<em>L<\/em>c\/C, where &alpha; is TSSFAC, <em>L<\/em>c is the characterization length of the element, and C is sound velocity. Thus the TSSFAC is a safety factor, used to stabilize the calculation.&lt;\/p&gt;&lt;p&gt;As for the MXEPS, it is the maximum principle strain, rather than the maximum effective plastic strain, which is EFFEPS. <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/23-12-2024-1734937486-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-398247","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/398247","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\/398247\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=398247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}