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Proceedings Paper

Numerical modeling of shape memory behavior using a continuum constitutive model
Author(s): G. Rengarajan; R. Krishna Kumar; J. N. Reddy
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Paper Abstract

Continuum constitutive models of shape memory behavior share a common feature. They describe the martensitic phase transformation by a parameter representing the martensite volume fraction, and formulate an evolution law in terms of the parameter. Exploiting the similarity of these models to elastoplasticity, a finite element formulation of a micromechanics based constitutive model is described. Several other models can be formulated in a similar way, and the present work can be seen as a testbed approach to study and evaluate the constitutive models on a common platform. Numerical results are presented for Au-47.5at%Cd to validate the finite element formulation.

Paper Details

Date Published: 16 April 1998
PDF: 12 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305619
Show Author Affiliations
G. Rengarajan, Texas A&M Univ. (Austria)
R. Krishna Kumar, Indian Institute of Technology (India)
J. N. Reddy, Texas A&M Univ. (United States)

Published in SPIE Proceedings Vol. 3321:
1996 Symposium on Smart Materials, Structures, and MEMS
Vasu K. Aatre; Vijay K. Varadan; Vasundara V. Varadan, Editor(s)

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