基于MSC的板材冷轧残余应力分布的数值仿真  

Residual Stress Numerical Simulation of Cold Rolling Board Based on MSC

作　　者：赵丽丽[1] 张以都[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100083

出　　处：《有色金属》2005年第1期27-29,共3页Nonferrous Metals

基　　金：国家自然科学基金项目 (4 180 10 60 1-6)

摘　　要：利用MSC软件建立了轧制过程的力学模型,采用弹塑性大变形有限元法,对典型铝板材冷轧后的残余应力分布进行数值仿真。仿真结果表明,在压缩量较小时,板材表面是残余压应力,心部是残余拉应力,在压缩量较大时,表面为残余拉应力,内层则呈残余压应力,且分布不均匀。The residual stress distribution of the typical Al board cold rolled is numerically simulated by finite element digital method for the large els-plastics deformation process based on the mechanical model of rolling process established with MSC software. It is indicated by the simulating results that the residual stress in surface layer of the board material is the pressure stress, and inside of the board is the tension stress under the condition of a little deformation, and reversely for large deformation. The residual stress is not uniformly distributed and disadvantageous to fatigue life of the material, under condition of the large els-plastics deformation.

关 键 词：冷轧 残余应力 板材 轧制过程 拉应力 表面 力学模型 不均匀 弹塑性 大变形有限元 

分 类 号：TG335[金属学及工艺—金属压力加工]