A crank arm consists of a solid segment of length b₁ and diameter d, a segment of length b₂, and a segment of length b₃, as shown in the figure. Two loads P act as shown: one parallel to -x and another parallel to -y. Each load P equals 1.2 kN. The crankshaft dimensions are b₁ = 75 mm, b₂ = 125 mm, and b₃ = 35 mm. The diameter of the upper shaft is d = 22 mm.

(a) Determine the maximum tensile, compressive, and shear stresses at point A, which is located on the surface of the shaft at the z axis.

(b) Determine the maximum tensile, compressive, and shear stresses at point B, which is located on the surface of the shaft at the y axis.

Transcribed Image Text:

Z b3 in-y direction P b₂ A in -x direction y B by