Non-Newtonian Creep Into a Two-Dimensional Cavity of Near-Rectangular Shape

[+] Author and Article Information
A. Bogobowicz

Department of Systems Design Engineering, university of Waterloo, Waterloo, ON N2L 3G1, Canada

J. Appl. Mech 63(4), 1047-1051 (Dec 01, 1996) (5 pages) doi:10.1115/1.2787230 History: Received October 04, 1994; Revised July 07, 1996; Online October 26, 2007


The plane-strain formulation for the steady-state closure of a near-rectangular, single isolated opening in an indefinite viscoelastic medium is presented. A power creep law describes the creep behavior of the viscous medium. Because of the highly nonlinear nature of the creep, an analytic solution is not possible for the proposed opening geometry, hence an approximation method based upon the minimum principle for velocities is used. The analytic function is used to describe the shape of opening (circular, elliptical, and rectangular with rounded corners).

Copyright © 1996 by The American Society of Mechanical Engineers
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