{"id":363700,"date":"2024-04-23T12:05:04","date_gmt":"2024-04-23T12:05:04","guid":{"rendered":"\/forum\/forums\/topic\/adjusting-geometric-strain-limit-in-explicit-dynamics\/"},"modified":"2024-04-23T12:05:04","modified_gmt":"2024-04-23T12:05:04","slug":"adjusting-geometric-strain-limit-in-explicit-dynamics","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/adjusting-geometric-strain-limit-in-explicit-dynamics\/","title":{"rendered":"Adjusting Geometric Strain Limit in Explicit Dynamics"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I&#8217;m currently facing some difficulties in setting up the Analysis Settings for Explicit Dynamics. In particular, I&#8217;m having trouble with the Erosion Controls section, where the default value for Geometric Strain Limit is set to 1.5.<\/p>\n<p>However, while browsing through a post on the Ansys Learning Forum, I came across a suggestion stating that this value should be set as the ratio of the material&#8217;s ultimate tensile strength to the Young&#8217;s modulus.<\/p>\n<p>Upon trying this approach and running simulations with the adjusted value, I observed that the material seems to fail much more readily compared to my usual results.<\/p>\n<p>Could someone clarify why the recommended approach suggests using the ratio of ultimate tensile strength to Young&#8217;s modulus for setting the Geometric Strain Limit value?<\/p>\n<p>Furthermore, I intend to apply this to collision analysis with a focus on the target&#8217;s failure. With two materials involved, the colliding object and the target, which material&#8217;s calculated Geometric Strain Limit value should be utilized?<\/p>\n<p>Thank you in advance for any insights or explanations provided.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/23-04-2024-1713873593-mceclip0.png\"><\/p>\n","protected":false},"template":"","class_list":["post-363700","topic","type-topic","status-closed","hentry","topic-tag-analysis-settings-1","topic-tag-ansys-explicit","topic-tag-collision","topic-tag-erosion-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["289784","275204"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["987"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["363700"],"_bbp_forum_id":["27814"],"_bbp_engagement":["275204","289784"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["363732"],"_bbp_last_active_id":["363732"],"_bbp_last_active_time":["2024-04-23 13:31:05"]},"test":"jwkang00hanyang-ac-kr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/363700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/363700\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=363700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}