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184_Mechanics Homework Mechanics of Materials Solution

# 184_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 3.15 The allowable stress is 15 ksi in the l.5-in.-diameter rod AB and 8 ksi in the 1 .8-in. -diameter rod BC. Neglecting the eﬁ‘ect of stress concentrations, determine the largest torque that may be applied at A. PROBLEM 3.15 "" T SOLUTION ._ TC _ __ 25...; T‘ JAE-ale“) T- 'E‘CSZ'MV 5551- A8: rm, 2 :5 ksi c, =§d = 0.75:” T= 32-(oi75fos) = “1.3+! Lap-in Steel SLQH BC: twp: 8k5£ c=La =O.‘70in T = §(oﬁo)3(8)= cue. lap-in. T‘le “£99ka “lorq at (a “He Smevpjer Val)“. T -.: ems “PM .- 3.16 The allowable stress is 15 ksi in the steel rod AB and 8 ksi in the brass rod BC. Knowing that a torque T = 10 kip-in. is applied at A, determine the required diameter of (a) rod AB, (1)) for BC. SOLUTION SlmH‘ A8: 3- (QlOol 3 c ' ‘n‘(:s) c = 0.7mm“ cl =2c. , 1.303 in. Sbaf’r BC: T: [o [Gracia 1’“, = 8 Vet 3_ (nglol __ . - CL "' TFCS) '-’ 0.77577 m c; = 0.9267 .‘n d= 2:. = l.853 in. "I ...
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