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880_Mechanics Homework Mechanics of Materials Solution

# 880_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 7.1 4 4 , Jig; \$1: rosette 0:11;)“ Imam used to determine the ﬁallowiug stains at a e¢=+420ﬂ ‘ 6134511 6.-+l65n (a) What should be the reading ofgege 3? (1'!) Determine the principal urn-aim :md the maximum Err-plane shearing main. SOLUTION gsﬁ' '1 (m Gageszma 4 aw: qo“ era-Ff M EN“ = aL(—95’,u +165#)= 60/4 Gages I and 3 are aim ‘70" :21)qu 56m = .k (El-+8.) . 53: 28m "’ E, '5 (2)(GO}I)- 42D}; — 300’" -‘ 6,: 8,: H20” .EJ=EA=~ -3oo,u Ygr 2.21 - 6‘, -E, - (2)C-¢Is,.7~ 420,; + 300,“ ”I; ‘7 “ 2’0!” f A R = am: > + (er F—w-«wij A“ W *-“ 375,11 8._= 8m + 12 - 60,1: ,+ 375); = 1:35,. a l 5.. ~= 8.... - R r so,” - 375’,“ 9 4515;» l TM‘MCh-Mnno) '-' 22" 750’“ ...
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