{"id":459988,"date":"2026-06-18T08:16:39","date_gmt":"2026-06-18T08:16:39","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drop-simulation\/"},"modified":"2026-06-18T08:19:08","modified_gmt":"2026-06-18T08:19:08","slug":"drop-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/drop-simulation\/","title":{"rendered":"Drop simulation"},"content":{"rendered":"<p>Hi<br \/>\n&lt;p&gt;I am using LS-DYNA to perform a drop simulation of a ball impacting the ground. The questions are:&lt;br&gt;(1)The total time is 1.5 ms. During the ball&#8217;s rebound, the internal energy continues to change. To accelerate the stabilization of the internal energy, I set global damping.&nbsp;&lt;br&gt;Could someone review whether this is correct?&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/06\/18-06-2026-1781770358-Capture38.PNG\" alt=\"\" \/>&lt;br&gt;(2) By the end time of simulation, does the strain represent the plastic strain?&lt;br&gt;Thank you in advance.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-459988","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["459988"],"_bbp_subscription":["467414","480261"],"_bbp_author_ip":["202.111.6.210"],"_bbp_last_reply_id":["460046"],"_bbp_last_active_id":["460046"],"_bbp_last_active_time":["2026-06-18 22:12:30"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["467414","480261"],"_btv_view_count":["118"],"_bbp_topic_status":["unanswered"],"_edit_last":["467414"],"_bbp_revision_log":["a:1:{i:459989;a:2:{s:6:\"author\";i:467414;s:6:\"reason\";s:0:\"\";}}"]},"test":"493357912qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/459988","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\/459988\/revisions"}],"predecessor-version":[{"id":459989,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/459988\/revisions\/459989"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=459988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}