{"id":452185,"date":"2026-02-06T19:31:23","date_gmt":"2026-02-06T19:31:23","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cohesive-zone-model-traction-separation-mat_cohesive_mixed_mode\/"},"modified":"2026-02-06T19:31:23","modified_gmt":"2026-02-06T19:31:23","slug":"cohesive-zone-model-traction-separation-mat_cohesive_mixed_mode","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cohesive-zone-model-traction-separation-mat_cohesive_mixed_mode\/","title":{"rendered":"Cohesive zone model – traction separation (MAT_COHESIVE_MIXED_MODE)"},"content":{"rendered":"

<p>Hi, I am learning LY-DYNA for my debonding model. I have watched some tutorial videos with a simple geometry (two metal strips boneded with adhesive) under Mode I fracture.\"\"<\/p><p>Here is what I did. <\/p><\/p>\n

    \n
  1. 3 Geometry: two metal blocks and a layer of adhesive.<\/li>\n
  2. Using ‘Commands’, MAT_138 (renamed) was added. <\/li>\n<\/ol>\n

    <p><\/p><p>3. After meshing, I added PART (Beta) and SECTION_SOLID under LS-DYNA (D5) tree. PART geometry was the adhesive layer selected. I selected ‘8-noded, 4 point cohesive element’ as ‘Element formulation option’ under SECTION_SOLID.<br><br>When I checked the error message in ‘messag’ file, it shows<\/p><p>” *** Error 40310 (SOL+310)<br>     Part ID 3 specified material type 1<br>     is not available for the cohesive element”<\/p><p>Can anyone help me with this? <\/p><\/p>\n","protected":false},"template":"","class_list":["post-452185","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["452185"],"_bbp_author_ip":["97.117.79.184"],"_bbp_last_reply_id":["452234"],"_bbp_last_active_id":["452234"],"_bbp_last_active_time":["2026-02-09 07:44:49"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["441820","515887","58821"],"_btv_view_count":["174"],"_bbp_topic_status":["unanswered"],"_bbp_notification_enabled":["441820"],"_bbp_subscription":["515887","58821"]},"test":"daehan-sungusu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/452185","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\/452185\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=452185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}