153 粒子すべりをモデル化した三相黄銅合金材料の切削性の解析(OS5-4 動的材料変形)(OS5 材料の衝撃強度・損傷に関する最近の知見)  [in Japanese] 153 Analysis of surface shaving on three-phase copper alloy with constitutive law modeling particle sliding  [in Japanese]

Meso-mechanical material modeling of a super plastic metal alloy is attempted. Multi-crystal grains in the metal that exibit extensive surface sliding is modeled for super-plasticity by employing a nonlinear tangential spring layer between the crystal grain and the matrix. The constitutive law for the domain in which mult-phase crystal grains of the type are dispersed is derived with the use of equivalent inclusion method on the basis of self-consistent shceme. Results of a large deformation finite element analysis on a surface cutting are shown employing Backofen's constitutive law.