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.
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