摘要
以母材为铝板的自冲铆接+粘接复合连接点为研究对象,前期通过设计连接点拉剪、撕裂和正拉3种工况下的动态拉伸试验和CAE仿真建模标定,准确获取了CAE仿真模型本构关系中的各项参数,最后对叠加多种工况的T型部件开展CAE碰撞仿真与高速撞击对比验证试验,CAE仿真准确预测连接点的失效,仿真精度达到了95.9%,精准表征了铆粘复合连接点在混合复杂工况下的变形与失效行为,在整车碰撞CAE仿真中具有较高的实用性。
The self piercing riveting&bonding composite connection point with aluminum plate was taken as the research object.In the early stage,through the dynamic tensile test and CAE simulation modeling calibration of the connection point under 3 working conditions of tension shear,tear and forward tension,the parameters in the constitutive relationship of CAE simulation model were accurately obtained.Finally,the comparative verification test of CAE collision simulation and high-speed impact was carried out for T-shaped components with multiple working conditions,CAE simulation accurately predicted and realized the failure of the connection point,and the simulation accuracy reached 95.9%.It accurately characterized the deformation and failure behavior of the riveted-bonded composite connection point under mixed complex working conditions,which has high practicability in the CAE simulation of vehicle collision.
作者
王鹏
庄华晔
张林阳
夏广明
范喜龙
Wang Peng;Zhuang Huaye;Zhang Linyang;Xia Guangming;Fan Xilong(Global R&D Center,China FAW Corporation Limited,Changchun 130011)
出处
《汽车工艺与材料》
2023年第2期58-62,共5页
Automobile Technology & Material
基金
吉林省、长春市重大科技专项(20210301025GX)。
关键词
铆粘复合连接
碰撞仿真
高速
失效预测
Riveted-bonded Composite Connection
Collision Simulation
High Speed
Failure Prediction
