1210 竹の傾斜構造に基づく曲げ座屈の解析(G.S.12 材料力学)

概要

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Plant hane a special property called adaptive growth which changes their body to adapt to enviroments.Eventually, they developed a functionally graded and hierarchical structure. Bamboo is a typical one of those plants.The bamboo culm constructs a functionally graded structure with respect to height, called by macroscopic functionlly graded structure. This paper presents why the internodal length of the bamboo culm changes in parabolicshape with height. Using a cylindrical shell model and taking account of nodes which insert discretely into the bamboo culm. Both the distributions get approximately close, the critical bending buckling moment is evaluated based on the proposed formula and compared with the moment distribution due to a wind load, it was concluded that the internodal length is designed to prevent a bending buckling of the bamboo culm.
一般社団法人日本機械学会の論文
2001-03-15