Page 284 - Shigley's Mechanical Engineering Design

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Failures Resulting from Static Loading 259
y

A 100 mm

B
Problem 5–36

z
F
15-mm D.

T P
x

5–37 For the beam in Prob. 3–44, p. 133, determine the minimum yield strength that should be con-
sidered to obtain a minimum factor of safety of 2 based on the distortion-energy theory.
5–38 A 1020 CD steel shaft is to transmit 20 hp while rotating at 1750 rpm. Determine the minimum
diameter for the shaft to provide a minimum factor of safety of 3 based on the maximum-shear-
stress theory.

5–39* to For the problem specified in the table, build upon the results of the original problem to determine
5–55* the minimum factor of safety for yielding. Use both the maximum-shear-stress theory and the
distortion-energy theory, and compare the results. The material is 1018 CD steel.

Problem Number Original Problem, Page Number

5–39* 3–68, 137
5–40* 3–69, 137
5–41* 3–70, 137
5–42* 3–71, 137
5–43* 3–72, 138
5–44* 3–73, 138
5–45* 3–74, 138
5–46* 3–76, 139
5–47* 3–77, 139
5–48* 3–79, 139
5–49* 3–80, 139
5–50* 3–81, 140
5–51* 3–82, 140
5–52* 3–83, 140
5–53* 3–84, 140
5–54* 3–85, 141
5–55* 3–86, 141