{"id":31738,"date":"2018-11-24T12:38:50","date_gmt":"2018-11-24T12:38:50","guid":{"rendered":"\/forum\/forums\/topic\/low-velocity-impact-of-honeycomb-core-using-explicit-dynamics\/"},"modified":"2018-11-24T12:38:50","modified_gmt":"2018-11-24T12:38:50","slug":"low-velocity-impact-of-honeycomb-core-using-explicit-dynamics","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/low-velocity-impact-of-honeycomb-core-using-explicit-dynamics\/","title":{"rendered":"Low velocity impact of Honeycomb core using Explicit Dynamics"},"content":{"rendered":"<p>I&#8217;m trying low-velocity impact test at 5 m\/s at hexagonal honeycomb core. The impactor is rigid, honeycomb is modelled as shell and the lower plate is rigid. The impactor is at 5 mm distance from the honeycomb, lower plate is at 1 mm distance from the honeycomb. The impactor is given a constant velocity of 5 m\/s.<\/p>\n<p><\/p>\n<p>I am not able to get correct crush behaviour.<\/p>\n<p><\/p>\n<p>Experimentally the honeycomb should start folding from either end but as can be seen in the figure below mine is starting to buckle at the middle of&nbsp;its height.<\/p>\n<p><\/p>\n<p>I have given a frictional body interaction for all bodies, self body contact is enabled, frictional contact between edges of honeycomb and impactor\/ lower plate.<\/p>\n<p><\/p>\n<p>Please help me out.<\/p>\n","protected":false},"template":"","class_list":["post-31738","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["3910"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["526"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["31738"],"_bbp_forum_id":["27814"],"_bbp_engagement":["240","897","160641","170190"],"_bbp_voice_count":["4"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["97855"],"_bbp_last_active_id":["97855"],"_bbp_last_active_time":["2019-11-05 14:55:40"]},"test":"ahmadnadeem"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/31738","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\/31738\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=31738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}