684CHAPTER 8Applications of Plane StressProblem 8.5-9Determine the maximum tensile, compressive, and shear stresses at points Aand Bon the bicycle pedal crankshown in the figure.The pedal and crank are in a horizontal plane and points Aand Bare located on the top of the crank. The load P±160 lbacts in the vertical direction and the distances (in the horizontalplane) between the line of action of the load and points Aand Bare b1±5.0 in., b2±2.5 in. and b3±1.0 in. Assume that thecrank has a solid circular cross section with diameter d±0.6 in.b1b2b3b3²P= 160 lbPABd= 0.6 in.CrankTop viewb2= 2.5 in.b3= 1.0 in.b3Ab1= 5.0 in.BSolution 8.5-9P±160 lbd±0.6 in.b1±5.0 in.b2±2.5 in.b3±1.0 in.STRESS RESULTANTS
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