結晶均質化有限要素法によるマルチスケール塑性変形解析

概要

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In this study, a multi-scale finite element modeling procedure, based on a crystallographic homogenization method, has been developed to estimate a macroscopic plastic properties, such like an anisotropic yield behavior and a plastic hardening evolution, caused by its microscopic plastic deformation. In this homogenization procedure, a particular scale value to specify the sizes of macro and microstructures has been introduced for physical understanding the compatibility between two scales. Especially, the micro crystal structure, which consists a unit cell to obey the periodicity of deformation, has consistency with a macrostructure deformation, and has been determined by employing the experimental observation results. ODF analyses to identify the texture of polycrystal structure were carried out through SEM and EBSD measurements. It is confirmed that this homogenized FE analysis code can predict a macroscopic anisotropic yield and inhomogeneous deformation in the microstructure.
一般社団法人日本機械学会の論文
2004-02-25