Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Engineering Posted 14 May 2018 My Price 4.00

internal flaws

1. A polymer that contains internal flaws 1 mm in length fails at a stress of 25 MPa. Determine the plane strain fracture toughness of the polymer. Assume that Æ’ = 1.

2. A ceramic part for a jet engine has a yield strength of 75,000 psi and a plane strain fracture toughness of 5,000 psi   To be sure that the part does not fail, we plan to assure that the maximum applied stress is only one-third the yield strength. We use a nondestructive test that will detect any internal flaws greater than 0.05 in. long. Assuming that ƒ = 1.4, does our nondestructive test have the required sensitivity? Explain.

 

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Maurice Tutor
(5)
Status NEW Posted 14 May 2018 03:05 PM My Price 4.00

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