https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9543505#M142483 <P>I know frame analysis will not directly give you a factor of safety.&nbsp; Using the formula <EM>FOS = Ffail / Fallow&nbsp; can we determine the FOS by dividing the yield strength of the material by the normal stress smax number ?&nbsp; I'm tagging <a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/108623">@JDMather</a>&nbsp; here hoping he can give me some direct help. </EM></P> Wed, 27 May 2020 15:13:46 GMT mfurches 2020-05-27T15:13:46Z https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9543505#M142483 <P>I know frame analysis will not directly give you a factor of safety.&nbsp; Using the formula <EM>FOS = Ffail / Fallow&nbsp; can we determine the FOS by dividing the yield strength of the material by the normal stress smax number ?&nbsp; I'm tagging <a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/108623">@JDMather</a>&nbsp; here hoping he can give me some direct help. </EM></P> Wed, 27 May 2020 15:13:46 GMT https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9543505#M142483 mfurches 2020-05-27T15:13:46Z https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9543879#M142484 <P>Yes.</P> <P>FoS=Sy/Smax</P> Wed, 27 May 2020 17:19:01 GMT https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9543879#M142484 JDMather 2020-05-27T17:19:01Z https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9623396#M142485 <P><SPAN>smax is maximum normal stress, what does sy mean?</SPAN></P> Wed, 08 Jul 2020 05:50:22 GMT https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9623396#M142485 jskim00 2020-07-08T05:50:22Z https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9624858#M142486 <BLOCKQUOTE><HR /><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/3412826">@jskim00</a>&nbsp;wrote:<BR /> <P><SPAN>smax is maximum normal stress, what does sy mean?</SPAN></P> <HR /></BLOCKQUOTE> <P>Strength at Yield (Yield Strength).</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Yield Strength.PNG" style="width: 366px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/793202i01EBAC406549BACD/image-size/large?v=v2&amp;px=999" role="button" title="Yield Strength.PNG" alt="Yield Strength.PNG" /></span></P> Wed, 08 Jul 2020 18:52:50 GMT https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9624858#M142486 JDMather 2020-07-08T18:52:50Z https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9625741#M142487 <P>Hello thanks for the answer.<BR />but, Why can't check von mises in result of frame analysis</P> Thu, 09 Jul 2020 08:56:46 GMT https://forums.autodesk.com/t5/inventor-forum/frame-analysis-factor-of-safety-equation/m-p/9625741#M142487 jskim00 2020-07-09T08:56:46Z