Numerical Simulation of Viscoplastic and Frictional Heating During Finite Deformation of Metal. Part I: Theory
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Volume 128, Issue 11
Abstract
This paper is concerned with the numerical simulation of hot metal forming, especially superplastic forming. In this first part, a complete thermo-viscoplastic formulation at finite strains is derived and a unified stress update algorithm for thermo-elastoplastic and thermo-elasto-viscoplastic constitutive equations is obtained. The resulting unified implicit algorithm is both efficient and very inexpensive. A staggered scheme is used for the global resolution of the thermomechanical problem. We will also describe the basis of our thermomechanical frictional contact model. Discussion of computational aspects and efficiencies will be assessed in the second part of this work.
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References
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Published In
Journal of Engineering Mechanics
Volume 128 • Issue 11 • November 2002
Pages: 1215 - 1221
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 30, 2001
Accepted: Mar 21, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
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