基于动力显式算法的镍镀层钢带成形模拟  

Simulation of Formation of Nickel Coated Steel Sheet Based on Dynamic Explicit Method

作　　者：张小兵 龙士国[1] 

机构地区：[1]湘潭大学低维材料及其应用技术教育部重点实验室

出　　处：《机械工程材料》2007年第12期83-86,94,共5页Materials For Mechanical Engineering

基　　金：教育部霍英东教育基金会高等院校青年教师优选资助项目(104014);湖南省教育厅高校青年科研项目(05B008)

摘　　要：利用LS-DYNA软件采用实体单元及动力显式算法模拟了镍镀层钢带深冲成形过程。板料与模具之间采用主从面对算法,摩擦力服从库仑摩擦定律,界面结合采用固连断开接触模型。结果表明:镀层与基体在深冲成形过程中不会出现界面失效,基体与镀层应力-应变分布以及材料流动规律大致相同,但镀层的应力-应变分布情况更复杂,表现为个别地方分布的不均匀;同时通过改变板料与模具间的摩擦因数,可减小摩擦有利于材料成形性能的改善。The simulation of the deep-drawing of nickel coated steel sheet based on solid element and dynamic explicit method was performed.The master surface-slave surface searching algorithms were used between sheet and tools and the frictional forces were subject to Coublomb′s law.The interface conjunction used Contact-Tied-Surface To-Surface model and interfacial bond strength was defined.The results of the simulation illustrated that the steel sheet and the nickel coating do not delaminate in their interface.The ...

关 键 词：动力显式算法 镍涂层钢带 材料流动 LS-DYNA软件 

分 类 号：TG174.44[金属学及工艺—金属表面处理]