On the effect of key edge shape on keyway edge stresses in shafts in torsion

Author:

Fessler H1,Appavoo T1

Affiliation:

1. Department of Mechanical Engineering, University of Nottingham

Abstract

Two-dimensional, photoelastic tests of cross-sections of two keyed shafts with 13 different shapes of keys showed that rounded edges of keys give lower stress concentrations in the shaft than chamfered edges. Stress concentrations are reduced by making both rounding radii and chamfers larger than the key way fillet radius. Making the key a sliding fit in the keyway allows significant relative movement and produces lower stress concentrations than the usual interference fits. Boussinesq's theoretical solution for stresses near a concentrated edge load has been successfully used for direct calibration of small photoelastic models.

Publisher

SAGE Publications

Subject

Applied Mathematics,Mechanical Engineering,Mechanics of Materials,Modelling and Simulation

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. On the history of torsional stress concentrations in shafts: From electrical analogies to numerical methods;The Journal of Strain Analysis for Engineering Design;2014-05-06

2. Stress concentrations in keyways and optimization of keyway design;The Journal of Strain Analysis for Engineering Design;2010-11

3. Stress concentrations in keyways and optimization of keyway design;J STRAIN ANAL ENG;2010

4. Advantages of cylindrical keys for torque transmission;The Journal of Strain Analysis for Engineering Design;1999-05-01

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