Embedment Effect on Eliminating Damage of CFRP Pull-riveting Process by Simulation Study  

作　　者：Yiqi WANG Zhiwei CONG Guang XIAO Yongjie BAO Hang GAO Key 

机构地区：[1]Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian,China

出　　处：《Mechanical Engineering Science》2021年第1期39-49,共11页机械工程（英文）

摘　　要：The rivet joints have been widely applied in aerospace and vehicle fields.During the joining process of the carbon fiber reinforced plastic(CFRP)laminates,the pre-tightening force of pulling-rivet was the key factor to ensure the connection performance.To predict the impact of clamping loads on stress and failure of laminates,the value of stress and damage evolution of the wall of a hole under the pre-tightening force were simulated by the finite element method.The results of the simulation showed that excessive clamping force led to the damage and failure of CFRP in the hole edge.Connection performance together with progressive failure process and failure modes of CFRP laminates with various pre-tightening forces were investigated.A kind of metal embedded parts embedded in the laminates was designed to reduce the damage by the simulation study.Simulation results showed that embedment reduced the failure and damage efficiently.The embedment reduced about 64%of the maximum stress.

关 键 词：embedment effect CFRP riveted damage evolution damage removal 

分 类 号：TU3[建筑科学—结构工程]