7075铝合金蠕变时效成形有限元分析  

Finite Element Analysis on Creep Aging Forming of 7075 Aluminum Alloy

作　　者：何武豪 刘大海[1] 黎俊初[1] HE Wuhao LIU Dahai LI Junchu(School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, Chin)

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063

出　　处：《热加工工艺》2016年第19期149-152,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(51375220)

摘　　要：为了描述和分析7075铝合金板材蠕变时效成形规律,利用高温电子蠕变拉伸试验数据构建了7075铝合金的蠕变本构关系。基于ABAQUS有限元分析软件提出了板材的蠕变时效成形分析方案。通过有限元方法的仿真分析得出了板材蠕变应力变化规律,并通过试验验证了有限元模型的可行性。In order to describe and analyze the creep aging forming law of 7075 aluminum alloy sheet, the creep constitutive relation of the 7075 aluminum alloy was established by using high temperature electron creep tensile test data. Creep aging forming analysis scheme for the sheet was proposed based on ABAQUS finite element analysis software. Through simulation analysis of finite element method, the creep stress of the sheet was obtained. And the feasibility of the finite element model was verified by experiments.

关 键 词：7075 铝合金 蠕变时效成形 本构方程 有限元分析 

分 类 号：TG306[金属学及工艺—金属压力加工]