Role of Microstructure in the Thermomechanical Behavior of SMA Composites

[+] Author and Article Information
Gu Quan Song, Qing Ping Sun

Department of Mechanical Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, P. R. China

M. Cherkaoui

Laboratoire de Physique et Mecanique des Materiaux, Institute Superieur de Genie Mecanique et Productique, Universite de Metz, F-57045 METZ Cedex, France

J. Eng. Mater. Technol 121(1), 86-92 (Jan 01, 1999) (7 pages) doi:10.1115/1.2816004 History: Received February 10, 1998; Revised May 21, 1998; Online November 27, 2007


A numerical study on the role of microstructure in the thermomechanical behavior of shape memory alloy (SMA) composites under uniaxial tension is performed. The simulation is based on the micromechanics model established recently by the authors. The influence of the shape and volume fraction of SMA on the overall behavior of the composite as well as on the internal stress and strain evolution is investigated. The strengthening effect of SMA on ductile matrix is illustrated. The obtained results demonstrate several interesting features of the new composite and may serve as a quantitative basis for the microstructure design of this composite in the future.

Copyright © 1999 by The American Society of Mechanical Engineers
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