Torsional Impact Response of a Thick-Walled Cylinder With a Circumferential Edge Crack

[+] Author and Article Information
Y. Shindo, W. Li

Department of Mechanical Engineering II, Faculty of Engineering, Tohoku University, Sendai, Japan

J. Pressure Vessel Technol 112(4), 367-373 (Nov 01, 1990) (7 pages) doi:10.1115/1.2929890 History: Received March 08, 1989; Revised February 01, 1990; Online June 17, 2008


This paper considers the torsional impact response of a long thick-walled cylinder containing an internal or external circumferential edge crack. Laplace and Hankel transforms are used to reduce the elastodynamic problem to a pair of dual integral equations. The dual integral equations are solved by using the standard transform technique, and the result is expressed in terms of an integral equation which has a generalized Cauchy kernel as the dominant part. The kernel of the integral equation is improved in order that the calculation may be made easy. A numerical Laplace inversion technique is used to recover the time dependence of the solution. The dynamic singular stress field is determined, and the numerical results on the dynamic stress intensity factor are obtained to show the influence of inertia, geometry, and their interactions.

Copyright © 1990 by The American Society of Mechanical Engineers
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