{"id":48242,"date":"2020-09-18T15:47:22","date_gmt":"2020-09-18T15:47:22","guid":{"rendered":"\/forum\/forums\/topic\/ls-dyna-single-element-material-verification-for-mat_johnson_cook\/"},"modified":"2020-09-18T15:47:22","modified_gmt":"2020-09-18T15:47:22","slug":"ls-dyna-single-element-material-verification-for-mat_johnson_cook","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-single-element-material-verification-for-mat_johnson_cook\/","title":{"rendered":"LS-DYNA Single Element Material Verification for MAT_JOHNSON_COOK"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I have seen some papers reference talk about single element verification of material models, however they usually only show a diagram of a constrained square, a few parameters and the general material parameters used. <\/p>\n<p>I was wondering if anyone had a good reference material on how to do single element verification using LS-DYNA?<\/p>\n<p>For example I am wanting to use MAT_JOHNSON_COOK with material Al5083 H116 and I seem to have results that show stress being 10000x smaller and steeper curve in my YY stress-strain plot than what is published from T. Borvik et al, Perforation of AA5083-H116 aluminum plates with conical-nose steel projectiles &#8211; calculation, 2009. My study in LS-DYNA is using Tonne, mm, s, MPa, N-mm and however which way I look at it, I can&#039;t seem to spot if I had made any unit error etc. in my 2D shell with thickness study. So i&#039;m leaning towards set up error, so inquiring about set up material.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/L5MMP83GZ9M7\/a-rashed.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/L5MMP83GZ9M7\/a-rashed.png\" alt=\"A. Rashed.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-48242","topic","type-topic","status-closed","hentry","topic-tag-ls-dyna","topic-tag-verification"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["20461"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["???7"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1357"],"_bbp_subscription":["249941"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["48242"],"_bbp_forum_id":["27814"],"_bbp_engagement":["83","175773"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["128419"],"_bbp_last_active_id":["128419"],"_bbp_last_active_time":["2020-09-29 13:32:59"]},"test":"ericho1986"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/48242","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\/48242\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=48242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}