セラミックス/金属接合材の破壊のシミュレーション解析

概要

論文の詳細を見る
Fracture of metal/ceramic bonded joints usually occurs at the edge of an interface. If the residual stress is small, a crack propagates along the interface to a critical length and then kinks into ceramics. If the residual stress is large, a crack directly kinks into ceramics. It is known that the strength and the fracture path are strongly dependent on the residual stress and the strength of the bonded interface. In this study, a method to simulate the fracture and strength of the metal/ceramic bonded joint is proposed based on the interfacial fracture mechanics, and some simulation results on 4-point bending specimens of ceramic (Si_3N_4)/metal (S45C) bonded joint are presented. It is found that the fracture path and fracture load can be well simulated by this method
一般社団法人日本機械学会の論文
1994-11-25