溶融・凝固による移動境界問題の粘塑性構成式を用いた固相-液相の連成解析 : 第1報 問題のモデル化と基礎式,有限要素式

抄録

Formulation of conservation laws of mass, momentum and energy for the region with moving interface between a solid and a liquid is described in the first part of the paper. Here, jump conditions of velocity, stress and heat flux on the interface are applied to give the fundamental equations including the Stefan condition relevant to the analysis of some problems incorporating melting/solidification. Discretized finite element equations for the analysis of temperature, stress/strain and melting/solidification in the course of welding are formulated using the thermo-elasto-viscoplastic constitutive equation.