直交異方性異材界面き裂の応力拡大係数 : 界面と主軸が一致しない場合

概要

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In this study, stress and displacement fields at the interface crack tip between dissimilar orthotropic materials are presented for the case where the principal axes of orthotropic materials are not aligned with the interface, based on the orthotropic elasticity theory. The correct form of the definition of stress intensity factors for the interface crack is clarified. This definition is consistent with that of orthotropic material and also of dissimilar isotropic materials. The extrapolation method to determine the stress intensity factors by numerical analysis is proposed based on this definition. Some interface cracks in a finite plate of dissimilar orthotropic materials are analyzed by BEM and the stress intensity factors are presented.
一般社団法人日本機械学会の論文
1994-09-25