二相焼結材料の弾性・弾塑性変形挙動の解析

概要

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This paper deals with a mechanical model for estimation of the deformation behavior of two-phase sintered materials. Two-phase sintered materials can be regarded as an assemblage of unit cells which consist of a hard grain and its surrounding soft binder. From a consideration of deformation characteristics of the unit cell, a mechanical model, which can predict not only overall elastic moduli and overall instantaneous elastic-plastic moduli but also microscopic stresses and strains of the two-phase sintered materials, has been proposed. This model has been applied to estimate the deformation behavior of WC-Co hardmetals with various volume fractions of Co. The analytical results of the overall elastic moduli and the overall stress-strain relations under uniaxial tensile tests agree well with the experimental results in references.
社団法人日本機械学会の論文
1987-10-25