Pipe Failure Theory

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Anonymous Poster #1	Pipe Failure Theory 04/21/2012 4:12 PM
	dear sir/s, If the internal pressure is the only load that the pipe faces, and the pipe of thickness "t" calculation is satisfied by Von Mises' theory.Then it is obvious that any pipe of thickness less than "t" will be considered as unsafe. But in such a case of a pipe with thickness < t, can you please explain whether or not, this will pass Tresca's theory of failure? best regards,
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#1 Re: Pipe Failure theory 04/21/2012 4:39 PM
	Perhaps a quick synopsis of Von Mises' and Tresca's respective theories would help. Or just furnish a set of sample calculations. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#2 Re: Pipe Failure theory 04/21/2012 7:54 PM
	Only your instructor knows for sure. Henri Tresca - Wikipedia, the free encyclopedia Von Mises yield criterion - Wikipedia, the free encyclopedia
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TrevorM Power-User Join Date: Jun 2009 Location: Australia Posts: 277 Good Answers: 45	#3 Re: Pipe Failure theory 04/21/2012 11:49 PM
	It is also obvious that if you understand the limitations of each of the theories, that you will probably be able to work out the answer - and it is the importance of understanding these limitations, and not the answer as such, that is, I suggest, why the original question was asked.
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IdeaSmith Guru Join Date: Mar 2012 Location: Out of your mind! Not in sight! Posts: 4424 Good Answers: 108	#4 Re: Pipe Failure Theory 04/23/2012 8:55 AM
	Am I right in saying that a real pipe will always have more than just the internal pressure as a load? __________________ Common Sense Dictates
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#5 In reply to #4 Re: Pipe Failure Theory 04/23/2012 10:14 AM
	Yes (e.g. tension, compression, bending from structural loads). Often, but not always, these other loads are much less than the internal pressure load. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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IdeaSmith (1); lyn (1); Tornado (2); TrevorM (1)

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