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843_Mechanics Homework Mechanics of Materials Solution

843_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 7.89 and 7.90 'Ihe state of plane stress shown is expected to occur in a east-iron PROBLEM 7.90 machimbase. Knowingtlmtibrthegrade ofeastimn used ain=160 MPaand auc= 320 MPa and using Mohr’s criterion, determine whether mpmre of the entrapment will 150 MP3 m- 3 " 55M?“ SOLUTION q=qonpa —50MPa. fiJEGSMPC-t I (:1: 6m + 12 = ”5.5 MP« 6; = SM - Q - —75.S MP4 6" Euna'on 0'? 1H": firuqa’rqn‘f bauna’avy 6:" —- 4—- : l $61». ”5.5 ‘ (—75.5) 0.753 4 I No ”9+0“ I60 320 ...
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