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460_Mechanics Homework Mechanics of Materials Solution

460_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 4.200 Knowing- that the machine component shown has a trapezoidal moss section PROBLEM 4-200 with a = 2.5 in. and b = 3.5 in., determine the stress at (a) pointA, (b) point B. ) so kip . in. SOLUTION Locafl‘e cem+v~orA a—M1Cb,+ga :- (bmt- b,"u",)jlm $1.: .. [(1 ( h- 19:) (o.s)(s)‘(2.5+3.5) : Gm“ m [CL-S'XIOW — 6.333(4)] ,9M *73 - Le)(2.s— 3.5) 7* — R _- 0. ohm ‘m. R M = 80 Wp-{vm (so 3,. r R— Y‘, r 2.71:8 in. 5A=-MJL:_ME§}_=-€J1ksf ... Aer, (IQMOAH‘MMm (b) 3/9: 12— v, “3.2232 an. M (fix-3.2332) ‘ 6 = J =._ W = - 6 (.18 ECO-4431306) 3 2‘4 ks. 4 ...
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