{"id":459482,"date":"2026-06-08T13:52:19","date_gmt":"2026-06-08T13:52:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-2025-r1-v251-windows-user-defined-material-package\/"},"modified":"2026-06-08T13:52:19","modified_gmt":"2026-06-08T13:52:19","slug":"ls-dyna-2025-r1-v251-windows-user-defined-material-package","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-2025-r1-v251-windows-user-defined-material-package\/","title":{"rendered":"LS-DYNA 2025 R1 (v251) Windows \u2014 User-Defined Material Package"},"content":{"rendered":"<p>&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;Hi,&lt;\/p&gt;&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;I have Ansys LS-DYNA 2025 R1 (v251) installed on Windows, with solver version SMP R14.1.1 double precision.&lt;\/p&gt;&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;I am implementing a custom nonlinear constitutive model (resilient modulus k-theta) using a UMAT subroutine and need the Windows usermat package containing:&lt;\/p&gt;&lt;ul class=&#8221;[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3&#8243;&gt;&lt;li class=&#8221;font-claude-response-body whitespace-normal break-words pl-2&#8243;&gt;dyn21.F \/ dyn21b.F<\/li>\n<p>&lt;li class=&#8221;font-claude-response-body whitespace-normal break-words pl-2&#8243;&gt;include files (.inc)<\/li>\n<p>&lt;li class=&#8221;font-claude-response-body whitespace-normal break-words pl-2&#8243;&gt;static libraries (.lib)<\/li>\n<p>&lt;li class=&#8221;font-claude-response-body whitespace-normal break-words pl-2&#8243;&gt;Windows build script (nmake makefile)<\/li>\n<\/ul>\n<p>&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;Could you please advise on the correct procedure to obtain this package for my installation?&lt;\/p&gt;&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;Compiler environment: Intel oneAPI (ifort), Microsoft Visual C++ 2019.&lt;\/p&gt;&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;Thank you very much.&lt;\/p&gt;&lt;p class=&#8221;font-claude-response-body break-words whitespace-normal leading-[1.7]&#8221;&gt;Elo&iacute;sa Castilho&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-459482","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["459482"],"_bbp_subscription":["675913","696385"],"_bbp_author_ip":["193.136.209.203"],"_bbp_last_reply_id":["459487"],"_bbp_last_active_id":["459487"],"_bbp_last_active_time":["2026-06-08 14:22:25"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["675913","696385"],"_btv_view_count":["76"],"_bbp_topic_status":["unanswered"],"_bbp_notification_enabled":["675913","675983"]},"test":"emsantoslnec-pt"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/459482","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\/459482\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=459482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}