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Abstract：
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Springback of bending sheet greatly affects the precision of stamping part.So it is very important for us to have a precision forecast of the springback in numerical simulation.Based on the theory of elastic-plastic and non-linear finite element,the super steel sheet bending process and the uninstalled rebounding distortion process were simulated by the explicit-implicit continuous solving function of ANSYS/LS-DYNA non-linear and dynamic finite program.The super steel sheet was bended by different radius of the punch and different punch-and-die clearances.The result of springback was obtained.By comparison of experimental and calculated results,the accuracy of the calculated results is verified.
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Funds：
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国家高技术研究发展计划(863计划)项目(2003AA33G010)
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AuthorIntro：
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Reference：
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[1]Gholinia,Humphreys F J,Prangnell P B.Processing to ul-trafine grain structures by conventional routes[J].MaterialsScience and Technology,2000,16(11-12):1251-1255.
[2]Liu X H,Wang G D.New Generation plain steel in China-present situation and development foreground[A].Proceed-ing of Symposium on Development of Advanced Steel[C].Shengyang:Northeastern University,2003.
[3]Zhou D,Wagoner R H.Development and application ofsheet-forming simulation[J].Journal of Materials ProcessingTechnology,1995,50(1):1-16.
[4]Karafillis A P,Boyce M C.Tooling design in sheet metalforming using springback calculations[J].Int.J.Mech.Sci.,1992,34(2):113-131.
[5]Makinouchi A.Sheet metal forming simulation in industry[J].Journal of Materials Processing Technology,1996,60(1-4):19-26.
[6]王勖成.有限单元法基本原理和数值方法[M].北京:清华大学出版社,2001.
[7]赵海鸥.LS-DYNA动力分析指南[M].北京:兵器工业出版社,2003.
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