{"id":286146,"date":"2023-05-29T10:08:21","date_gmt":"2023-05-29T10:08:21","guid":{"rendered":"\/forum\/forums\/reply\/286146\/"},"modified":"2023-05-29T10:08:21","modified_gmt":"2023-05-29T10:08:21","slug":"286146","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/286146\/","title":{"rendered":"Reply To: SPG self penetration after fracture"},"content":{"rendered":"<p>&lt;p&gt;I added *CONTACT_SPG card to my simulation using the keyword snippet as you advised, but crushed parts are still penetrated when I use penalty factor = 1.0 (see figures below). As I understand the penalty factor is the fraction of material elastic modulus, right? A good picture I can obtain only when I use penalty factor = 1000 but in that case the initial stress inside the SPG body becomes very high. If I set penalty factor = 1e06 my sample crushes at the very beginning of the simulation. Therefore I still don&#8217;t understand what is an appropriate value for penalty factor and how to adjust it?&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/29-05-2023-1685354583-mceclip0.png\" width=\"502\" height=\"273\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/29-05-2023-1685354602-mceclip1.png\" width=\"445\" height=\"271\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/29-05-2023-1685354623-mceclip2.png\" width=\"445\" height=\"272\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/05\/29-05-2023-1685354638-mceclip3.png\" width=\"453\" height=\"272\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-286146","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/286146","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\/286146\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=286146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}