An Empirical Design Procedure for Shafts with Fatigue Loadings
DARCOM INTERN TRAINING CENTER TEXARKANA TX
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This report presents a method of designing rotating shafts subjected to combined fatigue loads. In the past, the fatigue strength, a material property necessary for design, has been determined for axial, bending, and torsional loads independently. A general approach to design with combined loads requires a fatigue strength that does not depend on the type of loading. Measured differences in the fatigue strengths are attributed to the size of a shaft. By developing correction factors to be used on the applied bending and torsional loads, the axial fatigue strength can be used for combined loads. The octahedral shear theory and the von Mises-Hencky failure criteria are used in describing a design procedure for solid steel shafts. This approach should be verified experimentally.
- Metallurgy and Metallography
- Machinery and Tools