{"id":52392,"date":"2021-02-18T20:33:08","date_gmt":"2021-02-18T20:33:08","guid":{"rendered":"\/forum\/forums\/topic\/how-is-safety-factor-calculated\/"},"modified":"2021-02-18T20:33:08","modified_gmt":"2021-02-18T20:33:08","slug":"how-is-safety-factor-calculated","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-is-safety-factor-calculated\/","title":{"rendered":"How is Safety Factor Calculated?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello, I am doing a basic static structural model. I have an alumina cylinder under pressure and I want to know the stress profile and safety factor. I had to make this material myself because I couldn&#039;t find it in the included Ansys libraries. All I did was enter the density, Young&#039;s Modulus, and Poisson&#039;s Ratio (see the attached pic). In my model, I have included the Stress Tool Safety Factor in the solution. It is set to Max Equivalent Stress for the theory, and Tensile Yield per Material for the Stress Limit Type. I ran the simulation and it gave me nice looking answers for both stress and safety factor profiles. I am wondering: How is it calculating safety factor when I never told Ansys any strength properties about my material? I never typed in the yield or ultimate strength of alumina so what&#039;s the formula that Ansys uses? This safety factor is meaningless to me because I do not understand what it&#039;s representing. Thanks.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/C9XM6DIT6VMS\/alumina-png.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/C9XM6DIT6VMS\/alumina-png.png\" alt=\"alumina.PNG\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-52392","topic","type-topic","status-closed","hentry","topic-tag-safety-factor","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["24682"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["??=&"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1266"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["52392"],"_bbp_forum_id":["27796"],"_bbp_engagement":["240","186317"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["142928"],"_bbp_last_active_id":["142928"],"_bbp_last_active_time":["2021-02-19 02:45:32"]},"test":"akaf24"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/52392","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\/52392\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=52392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}