甲虫上翅の小柱根元の破壊タイプとそのモデル解析

概要

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The relationships between the load peaks in load-displacement curves and the failure type of trabecular root in an interlaminar peeling process of a beetle fore-wing of A. Dichotoma were investigated and the interlaminar reinforcement mechanism was analyzed by using FEM. The peeling model with trabecular structure was proposed and the geometrical parameters for the model were determined by in-situ microscope observation. It was shown that the proposed model could be used to predict failure type of the trabecular root and to make clear the interlaminar reinforcement of a fore-wing. It was also found that the load peaks in a peeling process were proportional to the diameter of a trabecula, and depended on the failure type of the trabecular root. The principal stress at the peeling tip was very converged without the trabecula, but could eased by trabecula structure. It was shown that the fracture type of the trabecular root could be predicted by FEM model analysis.
社団法人日本機械学会の論文
2002-02-25