常州大学学报（自然科学版）2016，Vol.28Issue(6)：68-72,5.DOI:10.3969/j.issn.2095-0411.2016.06.013
纯铝T型等通道变形有限元模拟研究
Finite Element Analysis of Pure Aluminum Processed by T-Shaped Equal Channel Angular Pressing
摘要
Abstract
Finite element analysis was carried out on pure Al during T-shaped equal channel angular pressing (T-ECAP)by DEFORM-3D software,and the simulation results were verified by the actual ex-periment.Effect of friction coefficient and pressing speed on load-displacement curves and distribution of stress and strain were investigated.With an increase of friction coefficient,the maximum load of T-ECAP increases.The variation tendency of the simulated load-displacement curves is almost consistent with the measured curves.The possible reasons were analyzed for the deviation of the measured load-displacement curves to the simulated load-displacement curves.The equivalent stress in plastic deformation zone is larger than that in the other zone.The pressing speed has little effect on the maximum equivalent stress.The e-quivalent strain is mainly distributed in the plastic deformation zone and the center zone in the bottom of billet.The maximum equivalent strain is in the center zone in the bottom of billet.关键词
T型等通道变形/纯铝/有限元分析/载荷-位移/应力应变分布Key words
T-shaped equal channel angular pressing/pure Al/finite element analysis/load-displacement/distribution of stress and strain分类
矿业与冶金引用本文复制引用
魏坤霞,马志俊,魏伟,杜庆柏,胡静..纯铝T型等通道变形有限元模拟研究[J].常州大学学报（自然科学版）,2016,28(6):68-72,5.基金项目
江苏省自然科学基金资助(BK20131144) （BK20131144）
江苏省研究生培养创新工程项目(苏教办研[2014]1号). （苏教办研[2014]1号）
