The shape memory efect (SME) and superelasticity (SE) appear due to the martensitic transformation in shape memory alloy (SMA). The shape fixity and shape recovery appear due to the glass transition in shape memory polymer (SMP). Elastic modulus and yield stress in SMA are high at high temperature and low at low temperature. In SMP, they are high at low temperature and low at high temperature. The two-way deformation is hard to be obtained in SMA and SMP by themselves. If the shape memory composites (SMC) with SMA and SMP are developed, not only the above-mentioned characteristics but also new function can be obtained. In the present study, SMC with SMA and SMP is fabricated and the basic properties are investigated. In the SMC, two SMA thin strips to show SME and SE are used. The bent shape is shape-memorized in both SMA strips. Two SMA strips bent in the opposite direction are combined. They are sandwiched between two SMC sheets and are putted in the central part of the SMC. The two-way deformation in bending is demostrated by heating and cooloing. The behavior of recovery force is investigated by the three-point bending test. In the test, recovery force increases and decreases during heating and cooling, respectively. In SMCs, we can combine variopus kinds of shape on SMA and SMP. We can also combine various kinds of phase transformation temperatures in SMA and glass transition temperature in SMP. We can obtain high performance in SMCs by the combination of these various kinds of shapes and phase transformation temperatures in SMAs and SMPs.

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