曲げモーメントを受ける異種材料中空軸の突合せ接着継手の弾塑性有限要素解析と強度

概要

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Stress distributions and deformation of adhesive butt joints are analyzed by the elastoplastic finite-element method when the joints of dissimilar shafts are subjected to external bending moments. The effects of the ratio of Young's modulus of adherends to that of adhesive and the adhesive thickness on the interface stress distribution are investigated. Joint strength is predicted from using the elastoplastic interface stress distributions. As a result, it is found that the singular stress at the interface edges increases with an increase of the ratio of Young's modulus. Measurement of strains in joints and experiments on joint strength were conducted. The calculated results are in fairly good agreement with the experimental results. It is found that the joint strength of dissimilar shafts is smaller than that of similar shafts. A fracture of dissimilar adhesive shafts occurs at interface between an adhesive and an adherend which has a smaller Young's modulus. It is observed that joint strength increases as the adhesive thickness increases.
一般社団法人日本機械学会の論文
1996-01-25