Tension and bending stress concentration factors in ‘U’, ‘V’, and opposed ‘U’–‘V’ notches

Author:

Kosmatka J B1,Fries R H1,Reinholtz C F1

Affiliation:

1. Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, V A.

Abstract

An analytical and experimental study has been performed to determine the tension and bending stress concentration factors as a function of notch depth for ‘U'—‘V’, and opposed ‘U'—‘V’ notches. Accurate results are produced using quadrilateral finite elements where the edge-lengths in the notch region are less than 10 percent of the notch radius, and using strain gauges where the active gauge length is less than 1/3 the notch radius. Results are presented for single ‘U’ and ‘V’ notches that are outside the range of previously published studies. A detailed stress analysis of a single notched specimen revealed the presence of a tension stress concentration factor ( Kt > 1) and a bending stress reduction factor ( Kb < 1) on the un-notched side of the bar directly opposite the notch. An approximate method of determining stress concentration factors for opposed ‘U'—‘V’ notch geometries is presented.

Publisher

SAGE Publications

Subject

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

Cited by 3 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. Dynamic Disintegration of Explosively-Driven Metal Cylinder with Internal V-Grooves;Materials;2021-01-27

2. Effect of notch depth on strain-concentration factor of rectangular bars with a single-edge notch under pure bending;International Journal of Solids and Structures;2006-02

3. An expert system for the determination of stress concentration factors;Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering;2001-04-01

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