Numerical Integration of Some Stiff Constitutive Models of Inelastic Deformation

[+] Author and Article Information
Virendra Kumar

Department of Materials Science and Engineering, Cornell University, Ithaca, N.Y.

Mahesh Morjaria

Department of Structural Engineering, Cornell University, Ithaca, N.Y.

Subrata Mukherjee

Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, N.Y.

J. Eng. Mater. Technol 102(1), 92-96 (Jan 01, 1980) (5 pages) doi:10.1115/1.3224791 History: Received August 01, 1978; Revised March 09, 1979; Online September 15, 2009


Several strategies for numerical time-integration of some stiff constitutive models of inelastic deformation are presented in this paper. Numerical results and comparisons are presented for the integration of one such model for the case of uniaxial deformation under various prescribed histories of stress or strain. A simple one step Euler type integration scheme with automatic time-step control, which can be easily adapted to the solution of multiaxial boundary value problems, appears promising.

Copyright © 1980 by ASME
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