{"id":440513,"date":"2025-09-01T14:47:19","date_gmt":"2025-09-01T14:47:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/crack-setup-using-mat_add_erosion-in-ansys-ls-dyna\/"},"modified":"2025-09-01T14:49:38","modified_gmt":"2025-09-01T14:49:38","slug":"crack-setup-using-mat_add_erosion-in-ansys-ls-dyna","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/crack-setup-using-mat_add_erosion-in-ansys-ls-dyna\/","title":{"rendered":"Crack Setup Using MAT_ADD_EROSION in ANSYS LS-DYNA"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Dear Ls-dyna community,&lt;\/p&gt;&lt;p&gt;I hope you all are pretty fine. I am reaching out to seek your expertise in ANSYS LS-DYNA, specifically regarding the modeling of crack setups using the MAT_ADD_EROSION material model during the blasting of hard rock.&lt;\/p&gt;&lt;p&gt;I am currently working on a project that involves simulating crack propagation in hard rock under blast loading conditions. I aim to use the MAT_ADD_EROSION model in LS-DYNA to capture material failure and erosion effectively. However, I am facing challenges in setting up the model correctly, particularly in defining the erosion criteria and ensuring accurate crack propagation behavior.&lt;\/p&gt;&lt;p&gt;Could you kindly provide guidance or share best practices for the following:&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Properly configuring the MAT_ADD_EROSION parameters for hard rock blasting simulations.&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Defining appropriate failure criteria to model crack initiation and propagation.&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any specific meshing techniques or element types recommended for capturing crack behavior accurately.&lt;\/p&gt;&lt;p&gt;&middot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common pitfalls to avoid when setting up such simulations in LS-DYNA.&lt;\/p&gt;&lt;p&gt;If you have any example input files, case studies, or references related to similar applications, I would greatly appreciate it if you could share them. Additionally, I&rsquo;d be happy to discuss my project in more detail or provide specific information about my setup if that would help in tailoring your advice.&lt;\/p&gt;&lt;p dir=&#8221;ltr&#8221;&gt;Thank you for your time and consideration. I look forward to your insights and any recommendations you might have.&lt;\/p&gt;&lt;p dir=&#8221;ltr&#8221;&gt; &lt;\/p&gt;&lt;p&gt;Regards, &lt;\/p&gt;&lt;p&gt;Yalew Tebeje&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-440513","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["440513"],"_bbp_author_ip":["196.189.12.178"],"_bbp_last_reply_id":["440665"],"_bbp_last_active_id":["440665"],"_bbp_last_active_time":["2025-09-03 11:07:02"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["343502","13468"],"_btv_view_count":["461"],"_bbp_topic_status":["unanswered"],"_edit_last":["343502"],"_bbp_revision_log":["a:1:{i:440514;a:2:{s:6:\"author\";i:343502;s:6:\"reason\";s:0:\"\";}}"],"_bbp_subscription":["13468"]},"test":"bcfeb5671f76a3f394e7a9a53237f30ffd1ff687"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/440513","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/440513\/revisions"}],"predecessor-version":[{"id":440514,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/440513\/revisions\/440514"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=440513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}