{"id":425447,"date":"2025-03-12T17:58:51","date_gmt":"2025-03-12T17:58:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-composite-tube-impact-simulation\/"},"modified":"2025-03-12T17:58:51","modified_gmt":"2025-03-12T17:58:51","slug":"ls-dyna-composite-tube-impact-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-composite-tube-impact-simulation\/","title":{"rendered":"LS-DYNA Composite Tube Impact Simulation"},"content":{"rendered":"<p>&lt;p&gt;Hi, I am currently trying to perform a simple composite tube impact simulation in LS-DYNA (through Workbench) where I used ACP to model the composite tube and a mechanical model to model a rigid wall (shell) and rigid impactor. I gave the impactor an initial velocity and the wall a rigid constraint. In addition I used the keyword manager to define the contacts between wall and tube, and tube and impactor. However, whenever I run the simulation the deformation tracker shows the tube being pushed through the wall. I assumed this to be either a contact definition problem or an error due to initial overlap between the wall and the tube. I tried visualising the wall with the Thickness Shell display option but this does not show overlap. I have added screenshots for clarification.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/12-03-2025-1741801855-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;42 % run:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/12-03-2025-1741801818-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;50% run:&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/12-03-2025-1741802150-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;settings:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/12-03-2025-1741802204-mceclip3.png\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/12-03-2025-1741802231-mceclip4.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;On the other hand I also feel like the simulation takes very long to run. Can this be related to the previous problem or is there more to it\/is this normal? Any help is more than welcome.&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-425447","topic","type-topic","status-publish","hentry","topic-tag-LS-DYNAruntime-1","topic-tag-ansyscontact-1","topic-tag-contact-definition-2","topic-tag-impact-study-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["425447"],"_bbp_subscription":["526326","13937"],"_bbp_author_ip":["188.95.55.119"],"_bbp_last_reply_id":["425842"],"_bbp_last_active_id":["425842"],"_bbp_last_active_time":["2025-03-17 08:52:21"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["526326","13937"],"_btv_view_count":["384"],"_bbp_topic_status":["unanswered"]},"test":"04cd198ad6deba29e6b65505e13f474974b9108b"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/425447","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\/425447\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=425447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}