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Abstract：
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On the base of Hill's bifurcation point bulking theory, it is calculated that winkling model of circle flange in the process of sheet drawing The elastic plastic constitutive equations of isotropic materials are obtained and the influences of several factors on wrinkling of flange are analyzed The ways to control wrinkling are put forward This model can provide necessary theoretical basis for the engineering practices
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Reference：
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1 黄世清正交各向异性金属板材的弹塑性屈曲及后屈曲分析湖南大学硕士论文,2002(5)
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5 JunxiangLeiPredictionandControlofBothWrinkleLimitandFractureLimitonCylindricalCupDeepDrawingJournalofUniversityofScienceandTechnologyBeijing,1998,5:237～241
6 刘鸿文板壳理论杭州:浙江大学出版社,1987
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8 [美]CP汉斯实用薄板理论北京:人民交通出版社,1982
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