{"id":362836,"date":"2024-04-18T04:44:28","date_gmt":"2024-04-18T04:44:28","guid":{"rendered":"\/forum\/forums\/topic\/nonlinear-fatigue-analysis\/"},"modified":"2024-04-18T04:46:28","modified_gmt":"2024-04-18T04:46:28","slug":"nonlinear-fatigue-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/nonlinear-fatigue-analysis\/","title":{"rendered":"Nonlinear Fatigue Analysis"},"content":{"rendered":"<p>Fatigue analysis (Time-Series SN) is done as linear superposition in DesignLife, however my FEA is nonlinear. Is this situation a problem? What can I do for this difference?&nbsp;<\/p>\n<p>In addition, I do 1 Newton analysis in FEA and the result does not reach to yield strength of material. Then, this result is used time-series fatigue analysis. When, the stress is multiplied by time series datas, it appears to have exceeded its yield strength. What should be my method for this? &nbsp;Should I make a separate analysis for inputs that pass yield strength?<\/p>\n","protected":false},"template":"","class_list":["post-362836","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Fatigue analysis (Time-Series SN) is done as linear superposition in DesignLife, however my FEA is nonlinear. Is this situation a problem? What can I do for this difference? In addition, I do 1 Newton analysis in FEA and the result does not reach to yield strength of material. 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