Vol. 1, No. 5, 2006

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Two-way thermomechanically coupled micromechanical analysis of shape memory alloy composites

Jacob Aboudi and Yuval Freed

Vol. 1 (2006), No. 5, 937–955

A previously established micromechanical model whose capability to analyze and predict the behavior of thermoinelastic fibrous composites with one-way thermomechanical coupling, in which the temperature is prescribed in advance, was verified. This model is extended herein to incorporate two-way thermomechanical coupling effects in thermoinelastic composites. As a result of this generalization, the temperature which is coupled to the mechanical effects, is governed by the energy equation and is induced into the composite’s constituents as a result of the application of mechanical loadings. The model is applied to predict the behavior of composites that consist of shape memory alloy fibers embedded in metallic and polymeric matrices. Results exhibit the response of the composites to various types of loading, and the effect of the two-way thermomechanical coupling that induces temperature deviations from reference temperatures at which shape memory and pseudoelasticity effects take place at the fibers.

shape memory alloys, periodic composites, thermomechanical coupling, micromechanics, high-fidelity generalized method of cells
Received: 13 February 2006
Accepted: 5 April 2006
Published: 1 September 2006
Jacob Aboudi
Department of Solid Mechanics, Materials and Systems
Faculty of Engineering
Tel Aviv University
Ramat Aviv 69978
Yuval Freed
Department of Solid Mechanics, Materials and Systems
Faculty of Engineering
Tel Aviv University
Ramat Aviv 69978