2218 二軸圧縮荷重を受ける傾斜機能薄膜の二次座屈挙動(S14-4 傾斜機能性や不均質性を有する材料の特性への取り組み,S14 先進材料の材料特性における弾性数理解析の新たな取り組み)

概要

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Secondary buckling behavior of functionally graded thin films under biaxial compression is studied. Elastic stiffness constants of the film are dependent on the coordinate variable in the thickness direction of the film. First we briefly present the governing equations of functionally graded thin films. Next we make the postbuckling analysis and derive the exact deflection and stress function in Euler buckling state. These solutions allow us to analyze secondary buckling phenomena. Finally, we study the secondary buckling behavior by use of the Galerkin method. The effects of the material inhomogeneity on the secondary buckling behavior is discussed.
社団法人日本機械学会の論文
2007-09-07