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Article #199Re: Question on Yield strength of aluminum
From: anthony.r.rizzo
Date: Mon, 14 Sep 1992 14:36
Date: Mon, 14 Sep 1992 14:36
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In article <1992Sep12.094121@IASTATE.EDU> ifan24@IASTATE.EDU (Ifan Alki) writes: >Hi everybody, > >I have a question about the yield strength of aluminum. >I have a stress-strain diagram of a tensile test. >The question is "How to determine the yield >strength of the alumium, based on that >diagram?" >For high strength steel we take .2% offset strain or .5% strain extension >under load. >Is this applicable to aluminum ? >Please also give me the sources about this matter. > Why would it NOT be applicable to aluminum? In any case, aluminum is a ductile metal, and the yield strength is a definition. If the 0.2% offset definition is not adequate for your particular application, and you have the LUXURY of testing samples from your lot of aluminum, then you can use the stress at any offset value that will suit your purpose. You could even use the elastic limit, or the proportional limit, if that's what you need and you can determine a value for it. Tony
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!spool.mu.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsm!cbnewsl!att-out!cbfsb!cbnewsf.cb.att.com!rizzo From: rizzo@cbnewsf.cb.att.com (anthony.r.rizzo) Newsgroups: sci.engr Subject: Re: Question on Yield strength of aluminum Keywords: yield strength, aluminum Message-ID: <1992Sep14.143646.14661@cbfsb.cb.att.com> Date: 14 Sep 92 14:36:46 GMT References: <1992Sep12.094121@IASTATE.EDU> Sender: news@cbfsb.cb.att.com Distribution: na Organization: AT&T Lines: 25