Concept explainers
Using the Goodman fatigue criterion, repeat Prob. 8–64 with the working pressure cycling between 1200 psi and 2000 psi.
8–64 The figure shows a fluid-pressure linear actuator (hydraulic cylinder) in which D = 4 in,
Problem 8–64
(a) Find the stiffnesses of the bolts and members, assuming that the entire cylinder is compressed uniformly and that the end brackets are perfectly rigid.
(b) Using the Gerber fatigue criterion, find the factor of safety guarding against a fatigue failure.
(c) What pressure would be required to cause total joint separation?
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