Modeling Internal Stresses in the Nonelastic Deformation of Metals

[+] Author and Article Information
T. C. Lowe

Sandia National Laboratories, Livermore, Calif. 94550

A. K. Miller

Stanford University, Stanford, Calif.

J. Eng. Mater. Technol 108(4), 365-373 (Oct 01, 1986) (9 pages) doi:10.1115/1.3225896 History: Received January 28, 1986; Online September 15, 2009


The roles of short range and long range internal stresses during nonelastic deformation have been postulated and explored using the MATMOD-4V deformation model. New microstructural variables have been introduced in MATMOD-4V which represent the effects of internal stresses upon deformation. Simulations for aluminum have been performed to demonstrate improved capability to represent small strain deformation behavior and dynamic recovery. Comparisons are made between experimental data and computer predictions of microplastic straining and cyclic deformation.

Copyright © 1986 by ASME
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