OS0808 任意の主軸方向を有する直交異方性異材の接合界面端応力特異性の発生・消失に関する検討(OS8-2 接合界面・接着,OS-8 機械の接合部・接触部のプロセスと疲労・強度問題2)

概要

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Free-edge stress singularity usually appears at the intersection of the free-surface and the interface of bonded dissimilar materials. Many researchers studied the free-edge stress singularity of bonded dissimilar materials. Not only isotropic materials but also anisotropic materials such as GFRP are used for making a bonded dissimilar materials. In this study, free-edge stress singularity of bonded dissimilar orthotropic materials with arbitrary principal directions were investigated theoretically by using the characteristic equation deduced in terms of Airy's stress function. Stress distribution on the interface was calculated by using the boundary element method. The value of the exponent of stress singularity determined from the numerically obtained stress distribution agreed well with the theoretical value obtained by using the characteristic equation. It was found that the free-edge stress singularity disappeared for a certain combination of wedge angles
一般社団法人日本機械学会の論文
2011-07-16