異方性弾性体中に存在する刃状転位の応力解析(G03-3 応力解析(1),G03 材料力学)

概要

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More or less, real metallurgical materials are anisotropic. So, stress field near dislocation in real metal is different from the one calculated under isotropic theory. But it is difficult and complex to calculate stresses near dislocation in anisotropic solid. In this paper, we propose a simple but useful finite element model of an edge dislocation in anisotropic elastic media on the basis of a dislocation model in isotropic media proposed by authors. The stress field will be calculated around an edge dislocation near phase boundary. From the results, it is shown that the model is sufficiently correct to calculate stress fields around an edge dislocation in anisotropic inhomogeneous media. Also, the stresses are approximately affected by the difference between elastic strain energies of two regions with/without dislocation.
社団法人日本機械学会の論文
2004-09-04