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Proceedings Paper

Multifunctional smart material system (MSMS) using shape memory alloys and shape memory polymers
Author(s): Pritha Ghosh; Ashwin Rao; A. R. Srinivasa
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Paper Abstract

A Multifunctional smart material system consists of two or more different smart material phases in the form of a hybrid system, in which every phase performs a different but necessary function. In this work, we show how thermally responsive Shape memory alloys (SMA) and Shape Memory Polymers (SMP) can be combined to form a Multifunctional Smart Material system (MSMS). The transformation temperatures Mf, Ms, As and Af of SMA and the glass transition Tg for the SMP play a critical role in designing such a MSMS. We illustrate how varying the Tg of SMP between the transformation temperatures Mf and Af of SMA results in a multi-state smart bias system with varying stiffnesses. In addition, we establish guidelines for the volume fractions of the individual constituents of such MSMSs to form "smart-bias" tools/devices. We further propose various ideas for smart devices that can operate through three temperature ranges, with one material constituent being passive and the other active at a given temperature.

Paper Details

Date Published: 28 March 2012
PDF: 12 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83411O (28 March 2012); doi: 10.1117/12.915750
Show Author Affiliations
Pritha Ghosh, Texas A&M Univ. (United States)
Ashwin Rao, Texas A&M Univ. (United States)
A. R. Srinivasa, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)

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