形状記憶合金ベロー材の力学特性の検討(G04-1 成形材の力学・強度特性,G04 機械材料・材料加工)

概要

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A single-stage bellows of TiNi shape memory alloy (SMA) has lower rigidity along the longitudinal direction of the tube through the effects of its shape and its material characteristics. Great characteristic of SMA is that they are able to undergo large strains without permanent deformation. They recover their initial shape at the end of the deformation process by releasing spontaneously or by heating. Therefore SMA bellows is considered to have the potential to be one of the seismic protection devices. In this study, fundamental compressive behaviors of TiNi bellows were measured and discussed. Several shapes of TiNi single-stage bellows produced by rubber bulge method were prepared. They were examined on compression properties. Based on the results, the relationship between the bellows shapes and their stiffness were clarified. Finally these results show that SMA bellows have great potential useful for seismic devices.
社団法人日本機械学会の論文
2004-09-04