{"id":319451,"date":"2023-11-25T14:43:32","date_gmt":"2023-11-25T14:43:32","guid":{"rendered":"\/forum\/forums\/topic\/no-plastic-deformation-in-explicit-dynamics-on-a-beam-section-tubular-chassis\/"},"modified":"2023-11-29T12:03:42","modified_gmt":"2023-11-29T12:03:42","slug":"no-plastic-deformation-in-explicit-dynamics-on-a-beam-section-tubular-chassis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/no-plastic-deformation-in-explicit-dynamics-on-a-beam-section-tubular-chassis\/","title":{"rendered":"No plastic deformation in Explicit Dynamics on a Beam Section Tubular Chassis."},"content":{"rendered":"<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/25-11-2023-1700923383-image_2023-11-25_144303212.png\"><img decoding=\"async\" title=\"Strain_1\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/25-11-2023-1700923383-image_2023-11-25_144303212.png\" alt=\"\"><\/a>I have designed a tubular chassis using a wireframe and assigned each line with a beam profile. The FEA for this works great but I now need to complete crash analysis on the chassis. I have used a velocity vector in the X direction on the main body of 15m\/s, the wall is a rigid body and the results shown above are using the strain_1 in user defined results. However when the animation is played it shows that after the impact the beams do not plastically deform and behave elastically and &#8216;jiggle&#8217; as the body effectively bounces off the wall. The material assigned is the AISI 4130 Steel provided in the ansys library and I struggling to figure out why I can&#8217;t achieve plastic deformation in the beams without going for a 3D mesh.<\/p>\n<p>Any help would be greatly appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-319451","topic","type-topic","status-closed","hentry","topic-tag-acp-explicit-dynamics-1","topic-tag-1d-beam","topic-tag-chassis","topic-tag-crash"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["302991","275204"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["896"],"_edit_lock":["1701083572:219927"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["319451"],"_bbp_forum_id":["27791"],"_bbp_engagement":["275204","302991"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["319875"],"_bbp_last_active_id":["319875"],"_bbp_last_active_time":["2023-11-28 22:30:58"]},"test":"ds21abnherts-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/319451","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\/319451\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=319451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}