Problem 2.3 - Average Normal Stress

Problem Statement

A plastic cylindrical peg is constrained by a metal cap as shown. An axial load of F = 40 lb is applied to the peg. If d1 = 0.5 in and d2 = 0.9 in, determine the normal stress in the peg. Assume the axial load is evenly distributed across the peg and that the metal cap is fixed and does not move.

Picture with a cylindrical peg constrained by a metal cap with a force applied to the plastic peg.

Figure 1: A plastic cylindrical peg is constrained by a metal cap

[Problem adapted from © Kurt Gramoll CC BY NC-SA 4.0]