{"id":165392,"date":"2023-03-17T09:00:11","date_gmt":"2023-03-17T09:00:11","guid":{"rendered":"\/knowledge\/forums\/topic\/how-do-i-define-a-load-direction-for-the-surf154-element-applied-on-face-5\/"},"modified":"2023-07-31T12:31:10","modified_gmt":"2023-07-31T12:31:10","slug":"how-do-i-define-a-load-direction-for-the-surf154-element-applied-on-face-5","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-do-i-define-a-load-direction-for-the-surf154-element-applied-on-face-5\/","title":{"rendered":"How do I define a load direction for the SURF154 element applied on face 5?"},"content":{"rendered":"<p>Below is the method to define the direction cosine for face 5 in SURF154.   If you want to specify a pressure of 100 on face 5 for element 1 at the direction of  (3i+4j+12k)\/(3*3+4*4+12*12)^0.5  where i,j,k are the unit vectors in x,y and z direction of the global Cartesian coordinate, issue the following command:  SFE,1,5,pres,,100,3,4,12  The same formulae can be found in SURF154 in the Element Manual.<\/p>\n","protected":false},"template":"","class_list":["post-165392","topic","type-topic","status-publish","hentry","topic-tag-4431","topic-tag-general","topic-tag-mechanical-apdl","topic-tag-modeling-and-meshing","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3\/15\/2023 20:20"],"_bbp_forum_id":["27789"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["1850"],"siebel_km_number":["181306"],"product_version":["17"],"km_published_date":["2002-06-07T00:00:00.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical APDL"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165392\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=165392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}