Numerical modeling of shape memory behavior using a continuum constitutive model

G. Rengarajan; R. Krishna Kumar; J. N. Reddy

doi:10.1117/12.305619

16 April 1998 Numerical modeling of shape memory behavior using a continuum constitutive model

G. Rengarajan, R. Krishna Kumar, J. N. Reddy

Proceedings Volume 3321, 1996 Symposium on Smart Materials, Structures, and MEMS; (1998) https://doi.org/10.1117/12.305619
Event: Smart Materials, Structures and MEMS, 1996, Bangalore, India

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.

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G. Rengarajan, R. Krishna Kumar, and J. N. Reddy "Numerical modeling of shape memory behavior using a continuum constitutive model", Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); https://doi.org/10.1117/12.305619

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