Virtual Processing of Hybrid SMA Composites through Martensitic Transformation Conference Paper uri icon

abstract

  • The capability of Shape Memory Alloys (SMAs) to modify the reference configuration of an SMA-composite through martensitic transformation is explored. It is intended that through careful selection of a thermomechan-ical loading path the composite can be "processed" such that the constituent phases are in a preferential reference configuration. Specifically, for materials which have preferred loading conditions (i.e., compression versus tension), such processing results in a residual stress state which takes advantage of the improved properties. The composite under investigation is assumed to be composed of an SMA phase and an elasto-plastic second phase. For analysis of such a composite, a Finite Element (FE) mesh based on a realistic microstructure is constructed by using the results of X-ray tomography. The resultant microstructure is analyzed using FE techniques. It is shown that through an isobaric loading path, transformation generates plastic strains in the elasto-plastic phase which modify the composite reference configuration. The effect of different applied loads is considered. 2011 SPIE.

name of conference

  • Behavior and Mechanics of Multifunctional Materials and Composites 2011

published proceedings

  • BEHAVIOR AND MECHANICS OF MULTIFUNCTIONAL MATERIALS AND COMPOSITES 2011

author list (cited authors)

  • Lester, B. T., Chemisky, Y., Geltmacher, A., Qidwai, S. M., & Lagoudas, D. C.

citation count

  • 0

complete list of authors

  • Lester, Brian T||Chemisky, Yves||Geltmacher, Andrew||Qidwai, Siddiq M||Lagoudas, Dimitris C

editor list (cited editors)

  • Ounaies, Z., & Seelecke, S. S.

publication date

  • January 2011