{"id":395472,"date":"2024-11-27T07:14:17","date_gmt":"2024-11-27T07:14:17","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/johnson-cook-material-strength-model-and-the-johnson-cook-fracture-model\/"},"modified":"2024-11-27T07:14:17","modified_gmt":"2024-11-27T07:14:17","slug":"johnson-cook-material-strength-model-and-the-johnson-cook-fracture-model","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/johnson-cook-material-strength-model-and-the-johnson-cook-fracture-model\/","title":{"rendered":"Johnson-Cook material strength model and the Johnson-Cook fracture model"},"content":{"rendered":"<p>&lt;p&gt;I have a question about the Johnson-Cook material strength model and the Johnson-Cook fracture model.&lt;br&gt;I understand that the Johnson-Cook material strength model is a model in which fracture is defined by yield stress, and the Johnson-Cook fracture model is a model in which fracture is defined by the accumulation of strain, but is this correct? Is this the specific difference?&lt;br&gt;Also, the Johnson-Cook fracture model is a model in which fracture is determined when accumulated strain exceeds a certain value, but I feel that this is inappropriate to apply to materials such as metals that fracture at a certain value, and that the model is more suitable for materials such as composites in which strain accumulates over a long period of time. I would like you to clarify any incorrect parts of this understanding.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-395472","topic","type-topic","status-publish","hentry","topic-tag-2dmaterialsandmetals-1","topic-tag-johnson-cook-model-2"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["395472"],"_bbp_author_ip":["130.34.95.40"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["70001","58821"],"_btv_view_count":["301"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["58821"],"_bbp_last_reply_id":["395477"],"_bbp_last_active_id":["395477"],"_bbp_last_active_time":["2024-11-27 07:31:37"]},"test":"kikuji-yuki-r3dc-tohoku-ac-jp"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/395472","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\/395472\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=395472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}