Practice Problem 7-4 (a) | Back | Index | Next |
Given: A force of P = 40 lb is applied (along the –z-axis) to the handle of a pipe wrench to tighten a solid shaft into its socket. Let, d = 15 in., R = 1.0 in., and L = 20 in. Req'd: Determine the normal stress s_{x} at Point A (x=L, y=R, z=0). |
Consider Point A:
- the is no axial force in the pipe, so no axial stress occurs at A.
- Point A is on the bending axis for M_{y}, so not bending stress occurs at A.
- the other stresses that act in the x-y-z coordinate system are shear stresses.
Thus, at Point A: s_{x} = 0.
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