統一形非弾性構成式を用いた切欠材の変形挙動の有限要素解析

抄録

Rate dependence becomes more remarkable with increasing temperature in the inelastic behavior of engineering materials. When we deal with a stress/strain response in a structure, a sophisticated constitutive relationship must be applied to the stress analysis since the materials exhibit complicated characteristics under multiaxial stress states. The aim of this paper is to apply a unified constitutive model to finite element analysis of a notched cylinder. Experimental verification is carried out for a PCA material (Primary Candidate Alloy for a fusion reactor component). The local strain response near the notch root is measured by an electric-capacitance type strain gauge.