锻压技术

冲压-刚度的耦合仿真分析技术

英文标题：Stamping-stiffness coupling simulation techniques

作者：徐伟力艾健俞宁峰吴华

单位：上海宝钢集团公司技术中心用户中心上海宝钢集团公司技术中心用户中心上海宝钢集团公司技术中心用户中心上海宝钢集团公司新日铁汽车板有限公司上海201900 上海201900 上海201900 上海201900

关键词：冲压回弹刚度

分类号：TG386

出版年,卷(期):页码：2006,31(1):6-8

摘要：

提出冲压———刚度的耦合仿真方法,即用动力显式算法计算冲压,静力隐式算法计算回弹,用动力显式算法计算最终的刚度,给出耦合仿真过程中3个环节的实施过程及其关键技术点。应用本方法对双曲率的盒形件进行了刚度仿真分析,并和试验结果进行了比较,取得了令人满意的计算精度。

In this paper,stamping-stiffness coupling simulation techniques are proposed,i.e.,stamping,springback and stiffness is simulated with dynamic-explicit FE method,static-implicit FE code, and dynamic-explicit FE method continually.The implement process of three steps and some relative key technical points are listed.The stiffness for a double-curvature box type parts is analyzed by this method.The simulation result is compared with experimental one and satisfied result is obtained.

基金项目：

参考文献：

[1]Decello J A,George R A.Design criteria for dent resistanceof auto body panels[DB].SAE Technical Paper 740081,1994.
[2]Yutori Y,Nomura S,Kokubo I,et al.Studies on static dentresistance[C].Proc.of 11thInternational Deep Draw Re-search Group(IDDRG),1980,561 569.
[3]Shi M F,Brindza J A,Michel P F,et al.Static and dynamicdent resistance performance of automotive steel body panels[DB].SAE technical paper 970158,1997.
[4]Shi M F,Wilczyski J S.Potential weight savings versus dentresistance performance of high strength steel body panel[C].International body Engineering Conference’93,1993,37 43.
[5]Raghavan K S,Arwashan N.Analysis of quasi-static dentingbehavior of automotive sheet steels[DB].SAE technical pa-per,970158,1997.
[6]Dicostanzo G P,Matlock D K,Foley R P.Effect of tensileproperties on dent resistance of sheet steels[DB].SAEtechnical paper 960024,1996.
[7]Asnafi N.On strength,stiffness and dent resistance of carbody panels[J].Journal of Materials Processing Technolo-gy,1995,49(1 2):13 31.
[8]Kudo M,Kodama A,Nagamitsu T,Namba T.Relationshipbetween surface stiffness and distortion originated with plasticstrain around handle opening[C].Proc.of Working GroupMetting of the International Deep Research Group,IDDRG,Working Group 1,Toronto,Canada,1988,22 24.
[9]Ekstrand G,Asnafi N.On testing of the stiffness and thedent resistance of autobody panels.Materials and design,1998,19:145 156.
[10]Alaniz C L,Brookes L E,Seel T N.Investigate of body pan-el stiffness as predicted by finite element analysis[DB].SAE technical paper,900716,1990.

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