{"id":39596,"date":"2019-12-13T13:38:58","date_gmt":"2019-12-13T13:38:58","guid":{"rendered":"\/forum\/forums\/topic\/4-point-bending-test-simulation-and-result-verification\/"},"modified":"2019-12-13T13:38:58","modified_gmt":"2019-12-13T13:38:58","slug":"4-point-bending-test-simulation-and-result-verification","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/4-point-bending-test-simulation-and-result-verification\/","title":{"rendered":"4-Point-Bending test simulation and result verification"},"content":{"rendered":"

Hello everyone!<\/p>\n

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First at all: Thanks for this great community. I learned a lot over the last months just with reading discussions here. Now to my problem (Ansys<\/span> version Workbench 19.2 students access): I try to do simulation of simple geometries in a 4-point-bending test. The simulated results of applied force\/deformation achieved are not near the results of applied force\/deformation achieved due to real testing.<\/p>\n

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The simple geometry is pushed downwards from two forces attached to two lines at the top surface of the geometry. The bottom is supported by a fixed support and a displacement support.<\/p>\n

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\"\"<\/p>\n

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As result, I got this:<\/p>\n

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\"\"<\/p>\n

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I tested a bar made from aluminum alloy 6060-T66 (3.3206). I did measure the dimensions of the flat bar and the placement of the testing-machine carefully and simulated it the same way. For the material data in Ansys I got the plastic strain\/true stress form totalmateria.com since I get some material data points of that specific material for free. For comparision I used deformation probe(at the place of aplied force) over max equivalent stress chart made in Ansys.<\/p>\n

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I inserted this in the multilinear Isotropic Hardening. I just paste here my material data:<\/p>\n

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\"\"<\/p>\n

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My model converges, large deformations is on, I tryed with dense mesh and with rough mesh, the force is applied stepwise… I don’t have a clue why the results aren’t nearly the same.<\/p>\n

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Maybe somebody has any idea what to try or what I may have missed doing?<\/p>\n","protected":false},"template":"","class_list":["post-39596","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["11775"],"_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"],"_btv_view_count":["835"],"_bbp_subscription":["245816"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39596"],"_bbp_forum_id":["27791"],"_bbp_engagement":["171477","224957"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["232572"],"_bbp_last_active_id":["232572"],"_bbp_last_active_time":["2022-01-03 08:55:07"]},"test":"danielg"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39596","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\/39596\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}