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c) Using Goodman's rule for shear stress, sm Ssa+ S Se Su se = 1, allow S determine the maximum allowable midrange shear stress
c) Using Goodman's rule for shear stress, sm Ssa+ S Se Su se = 1, allow S determine the maximum allowable midrange shear stress as where Ssm is the midrange shear strength component, Ssa is the shear strength amplitude, and n is the safety factor. Use n = 1.2. n Hint: Observe that Ssa/Ssm = Fa/Fm, where Fa= Fmax-Fmin and Fm = (Fmax + Fmin)/2 are the amplitude and midrange of the cyclic loading.
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Given that n 12 and using Goodmans rule Ssa Ssm 12 Ssm 1 Ssa ...
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Mechanics of Materials
Authors: Russell C. Hibbeler
10th edition
134319656, 978-0134319650
