異方性材接合界面とき裂との干渉効果

概要

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In this paper, the problem of a crack normal to an interface in two jointed orthotropic plates is studied as a plane problem. Body force method is used to investigate dependence of the stress intensity factor on the material elastic constants. A particular attention is paid to simplifying kernal function, which is used in the body force method, so that all the elastic constants involved can be represented by three new parameters : H_I, H_<2I>, H_3 for the mode I deformation and H_I, H_<2II>, H_3 for the mode II deformation. It is found that the effects of the material elastic constants on the stress intensity factors can be expressed by the three parameters, H_I, H_<2I>, H_3 and H_I, H_<2II>, H_3,respectively for K_I and K_<II>. Furthermore, it is also found that the dependence of K_I on H_I, H_<2I>, H_3 is exactly the same as the dependence of K_<II> on H_I, H_<2II>, H_3.
一般社団法人日本機械学会の論文
1999-01-25