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27 March 2012 Multifunctional smart material system (MSMS) using shape memory alloys and shape memory polymers
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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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pritha Ghosh, Ashwin Rao, and A. R. Srinivasa "Multifunctional smart material system (MSMS) using shape memory alloys and shape memory polymers", Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83411O (27 March 2012); https://doi.org/10.1117/12.915750
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