806 形状記憶合金箔の回復応力を利用した損傷抑制効果の評価

概要

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The focus point of this paper is if Recovery Stress of SMA (Shape Memory Alloys) foil could be used as Damage Suppression system. Recovery Stress is the stress generated owing to SMA's shape memory effect when Pre-strained SMA is restricted and risen in temperature. If Recovery Stress is effective in Damage Suppression, Cross-ply laminates with embedded Pre-strained SMA foils in hot air must be suppressed Transverse Crack Density in 90° ply. According to loading-unloading test, not only the first cracking strain and the crack density of the specimens with Pre-strained SMA foils were suppressed but also the ultimate strain was larger than the specimens without them. In conclusion, that is the hopeful way Pre-strained SMA foils are used as Damage Suppression system.
社団法人日本機械学会の論文
2002-03-14