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399_Mechanics Homework Mechanics of Materials Solution

399_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 4.137 The C-shaped steel bar is used as a dynamometer to determine the magnitude PROBLEM 4.137 P ofthe forces shown. Knowingthet the cross section of the bar is a square of side 40 mm and that strain on the inner edge was measured and found to be 450 ,4, determine the magnitude 1’ of the forces. Use E = 200 GPa. SOLUTION A’f ‘Hne S'hrain Snag Paciﬁc... 6'= EE = (200nm?)(wowo-6) .-.- 90 *ID‘ 1 A = (HoMt-IDW .— Iaoomm‘ ~—- lsoouo" m I "' 7%(90)(‘f0)3’ 213.3331103 rm»:i = 2l3.53xlo'q WI q a: 804.20 = IDDMM = O.IQOI~1 20 MM 5 0.020 m z 3. m. r .13 Per: - 5 A + I A + I ' RP e c .| (OJODKO-O'z") __ ‘0‘ 00 nm ——_—— I ' Icoouto‘ 2:3.33uo‘"- - We: “-‘ qﬁéxlosN = ‘10de 4 1‘ I05 m“ ...
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