K-2319 形状記憶ポリマー粒子含有インテリジェントマテリアルの剛性に関するマイクロメカニックス解析(J03-3 知的要素技術(3))(J03 知的材料・構造システム)

概要

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A shape-memory polymer of polyurethane series can be designed for its glass-transition temperature T_g A material containing such shape-memory polymer particles may be designed for its macroscopic stiffness by adjusting both the magnitude of pre-strain which is given to a particle a priori and the T_g distribution of particles. This composite material then can be regarded as an intelligent material to macroscopic stiffness. In the present research, micromechanical analysis on the macroscopic stiffness of such an intelligent material is performed by taking into consideration of the T_g distributions and the pre-strain, and then the macroscopic elastic modulus E^^- of the model is derived. As a result, it can be seen that the value E^^- after shape recovery of particles increase with increasing the pre-strain and such increase in E^^- is influenced by maximum heating temperature of the material and T_g distribution of particles. From these result, the macroscopic stiffness of such an intelligent material containing shape memory polymer particles can be considered to be controlled on its value.
社団法人日本機械学会の論文
2001-08-22