scannedproblems3

scannedproblems3 - PROBLEMS : 2.93 K nowing that P = 10...

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116 Fig. P2.93 and P2.94 3 . s ll1· Fig. P2.96 PROBLEMS : 2.93 Knowing that P = 10 kips, determine the maximum stress when (a) r = 0.50 in., (b) r = 0.625 in. 2.94 Knowing that, for the plate shown, the allowable stress is l6 ksi, determine the maximum allowable value of P when (a) r = ~ in., (b) r = ~ in. 2.95 For P = 8.5 kips, determine the minimum plate thickness t required if the allowable stress is 18 ksi. rA = t in. r IJ = % Fig. P2.95 2.96 Knowing that the hole has a diameter of ~ in., determine (a) the ra· dius Ij of the fillets for which the same maximum stress occurs at the hole A and at the fillets, (b) the corresponding maximum allowable load P if the al- lowable stress is l5 ksi. 2.97 A hole is to be drilled in the plate at A. The diameters of the bits available to drill the hole range from 12 to 24 mm in 3-mm increments. (a) Determine the diameter d of the largest bit that can be used if the allow- able load at the hole is to exceed that at the fillet. (b) If the allowable stress in the plate is 145 MPa, what is the conesponding allowable load P? Fig. P2.97 and P2.98 2.98 P = 58 kN and d = 12 ml11, determjne the maximum stress in the plate shown. (b) Solve part a, assumjng that the hole at A is not drilled.

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PROBLEMS 3.1 For the cylindrical shaft shown, determine the maximum shearing stress caused by a torque of magnitude T = I.S kN . m. T Fig. P3.1 and P3.2 3.2 Determine the torque T that causes a maximum shearing stress of 80 MPa in the steel cylindrical shaft shown. 3.3 Knowing that the internal diameter of the ho llow shaft shown is d = 0.9 in., determine the maximum shearing stress caused by a torque of mag- nitude T = 9 kip· in. 3.4 Knowing that d = 1.2 in., determine the torque T that causes a max- imum shearing stress of 7.5 ksi in the ho llow shaft shown. 3.5 (a) Determine the torque that can be applied to a solid shaft of 20-mm diameter without exceeding an allowable shearing stress of 80 MPa. (b) Solve part a, assuming that the solid shaft has been replaced by a hollow shaft of the
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This note was uploaded on 04/26/2010 for the course MECHANIC MEM230 taught by Professor Fonesa during the Spring '10 term at Drexel.

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scannedproblems3 - PROBLEMS : 2.93 K nowing that P = 10...

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