軽量CFRP製インテリジェント義足フレームの開発 : CFRPと金属ひざ関節接合部の設計研究

概要

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Using FEM structural analysis, a load bearing frame for a light weight prosthesis made of carbon fiber reinforced plastic (CFRP) was developed, complying with both severe spatial restrictions and the ISO specification for strength. This paper focuses on the optimum design of the joint between the thin CFRP frame and a metal knee joint. A special bracket, which is implanted into the frame and prevents rotation of the knee, was developed for the joint, in order to reduce the stress concentration generated around the bracket hole of the frame. The orientation of the carbon fiber cloth ply was optimized taking the anisotropy of the CFRP into account. The static fracture strength of the CFRP frame predicted by the analyses agreed well with the results of fracture tests.
一般社団法人日本機械学会の論文
2000-04-25