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RESEARCH PAPERS

Notch-Tip Stresses in a Creeping Solid

[+] Author and Article Information
J. L. Bassani

Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, Pa. 19104

J. Appl. Mech 51(3), 475-480 (Sep 01, 1984) (6 pages) doi:10.1115/1.3167660 History: Received June 01, 1983; Revised December 01, 1983; Online July 21, 2009

Abstract

At high stress levels the creep strain rate for many materials varies as the exponential of stress while at low stresses it varies as stress to some power. An analysis is presented for a sharp notch under antiplane shear loading in a material that deforms by hyperbolic-sine-law creep, ε̇c = ε̇0 [sinh(σ/σ0 )]n . The asymptotic notch-tip stress intensification is weaker and the strain-rate intensification is stronger than for a power-law creeping material.

Copyright © 1984 by ASME
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