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In the present paper, firstly, systematization of change of unique performance due to combination of materials (fiber volume fraction and Young's modulus of matrix) is analytically tried for shape memory alloy composite (SMAC). Secondary, for some SMACs having a combination of materials, composite strain (deformation ability) under thermo-loading is experimentally measured using digital image correlation method. Also, internal stress in matrix is qualitatively observed using photoelastic method. Temperature distribution on surface of composite is measured by infrared radiation thermometry method. The results obtained in the present investigation are as follows; (1) The unique performances (deformation ability and creating of compressive residual stress in matrix) of SMAC changed with changing combination of fiber volume fraction and Young's modulus of matrix. Systematizing this trend is useful for designing SMAC desired. (2) By heating composite containing pre-strained NiTi fiber in a polyester, SMACs exhibited large shrinkage and change of internal stress due to shape memory effect of fiber. Also, there existed temperature distribution on the surface of composite. The result of deformation ability was different with analytical result. Therefore, more phenomena must be considered for analytical model such as temperature distribution, change of Young's modulus due to temperature and so on.
日本実験力学会の論文