Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)

10th Edition

ISBN: 9780073398204

Author: Richard G Budynas, Keith J Nisbett

Publisher: McGraw-Hill Education

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Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works …

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Chapter 6, Problem 35P

A part is loaded with a combination of bending, axial, and torsion such that the following stresses are created at a particular location:

Bending: Completely reversed, with a maximum stress of 60 MPa

Axial: Constant stress of 20 MPa

Torsion: Repeated load, varying from 0 MPa to 50 MPa

Assume the varying stresses are in phase with each other. The part contains a notch such that K_f.bending = 1.4, K_f.axial = 1.1. and K_f.torsion = 2.0. The material properties are S_y = 300 MPa and S_u = 400 MPa. The completely adjusted endurance limit is found to be S_e = 200 MPa. Find the factor of safety for fatigue based on infinite life, using the modified Goodman criterion. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding.

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Chapter 6, Problem 34P

Chapter 6, Problem 36P

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Chapter 6 Solutions

Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)

Ch. 6 - A 10-mm steel drill rod was heat-treated and...Ch. 6 - Prob. 2P Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - Repeat Prob. 6-5 with the specimen having an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - Derive Eq. (6-17). Rearrange the equation to solve...Ch. 6 - For the interval 103 N 106 cycles, develop an...Ch. 6 - Estimate the endurance strength of a...

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