Posted by: sunilk ® 03/16/2006, 20:22:43 Author Profile eMail author Edit

Hi, I am doing an FEA ANALYSIS, its 2d PLANE STRESS ANALYSIS. I got my max. principal stress to be 1.33e4 lbf/in2 and my vonmises stress to be 1.65e4 lbf/in2. Which ONe shall I use ? the vonmises or the max. principal stress? plz. reply sunil

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Re: VON MISES OR MAX. PRINCIPAL STRESS
Re: VON MISES OR MAX. PRINCIPAL STRESS -- sunilk	Post Reply	Top of thread	Forum

Posted by: Kelly_Bramble ® 03/17/2006, 09:12:07 Author Profile eMail author Edit

Von Mises Criterion is used to estimate fatigue failure with tensile and tensle-shear loading. In general, use Von Mises for determining failure in Ductile materials. Maximum principle stress (normal stress) is used for determining failure in Brittle materials

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Re: VON MISES OR MAX. PRINCIPAL STRESS
Re: Re: VON MISES OR MAX. PRINCIPAL STRESS -- Kelly_Bramble	Post Reply	Top of thread	Forum

Posted by: manteiv ® 03/17/2006, 09:22:56 Author Profile eMail author Edit

Here are links to some articles explainging the two: Good luck, Brian ----Commercial Competitor Links Deleted---- Administrator Modified by Administrator at Fri, Mar 17, 2006, 09:41:48

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