ひずみ速度依存性平面ひずみブロックの変形挙動 : 第2報、変形の局所化に及ぼす熱発生の影響

抄録

A constitutive equation with a one-to-one relation between the stress rate and the viscoplastic strain rate is generalized to describe the deformation behavior of temperature-dependent materials. This constitutive equation and work done by the viscoplastic deformation were introduced to the finite element program and then applied to the solution of deformation behaviors of strain rate and temperature sensitive blocks subjected to tension. The effect of the deformation velocity, material strain rate, temperature sensitivities and thermal conductivity on the flow localization has been clarified.