Effect of Strain Hardening and Rate Sensitivity on the Dynamic Growth of a Void in a Plastic Material

[+] Author and Article Information
M. Ortiz

Division of Engineering, Brown University, Providence, RI 02912

A. Molinari

Laboratoire de Physique et Mecanique des Materiaux, Faculte des Sciences, lie du Saulcy, Universite de Metz, 57000 Metz, France

J. Appl. Mech 59(1), 48-53 (Mar 01, 1992) (6 pages) doi:10.1115/1.2899463 History: Received April 06, 1989; Online March 31, 2008


The problem studied in this paper concerns the dynamic expansion of a spherical void in an unbounded solid under the action of remote hydrostatic tension. The void is assumed to remain spherical throughout the deformation and the matrix to be incompressible. The effects of inertia, strain hardening, and rate sensitivity on the short and long-term behavior of the void, as well as on its response to ramp loading, are investigated in detail.

Copyright © 1992 by The American Society of Mechanical Engineers
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