Localized Stresses Combined With Geometric Discontinuities: Study of a Shaft

Author:

Amé Ricardo M.1,Dasso Gabriel M.1

Affiliation:

1. National University of Lomas de Zamora, Lomas de Zamora, Buenos Aires, Argentina

Abstract

Due to its functional characteristics, machine components are designed with various geometrical discontinuities, usually combined in a single section or sections very close. Localized stresses they generate are difficult to obtain if not by computer. The classical literature offers no stress concentration factors for cases as common as those seen in, for example, the design of a shaft, where they coexist, with various geometric discontinuities, efforts as torque and bending combined. In this work we present and analyze the results obtained from the Von Mises stress occurring in areas of a shaft with a change in diameter and a keyway, considering the load applied as a lateral pressure from the key generated to transmit a given torque. It is also considered a bending effort. The objective is to obtain the Von Mises stress values for different positions of the keyway with respect to the fillet radius for the change in diameters and also to find the influence of the proximity of the keyway on the values of the stress in the fillet radius.

Publisher

American Society of Mechanical Engineers

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