| 板料成形有限应变弹塑性有限元分析 |
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| 引用本文： | 金大庆,李尚健,肖景容.板料成形有限应变弹塑性有限元分析[J].华中科技大学学报(自然科学版),1987(Z1). |
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| 作者姓名： | 金大庆 李尚健 肖景容 |
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| 作者单位： | 华中工学院机械工程二系
(金大庆，李尚健)，华中工学院机械工程二系(肖景容) |
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| 基金项目： | 中国科学院基金资助的课题，国家教委会基金资助的课题 |
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| 摘 要： | 本文依据Kirchhoff薄壳理论与J2塑性流动理论,提出了分析轴对称刚性冲头胀形成形的大变形弹塑性拉格朗日有限元分析的数学模型.文中采用改进的直接增量法,在Honeywell DPS 8/52计算机上成功地模拟了金属薄板的半球面刚性冲头的胀形成形过程.文中还运用网格技术进行了实验验证.
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| 关 键 词： | 板材 有限 应变 弹塑性 有限元分析 数学模型 薄壳理论 流动理论 |
A Finite Strain Elastic-Plastic Finite Element Analysis for Axisymmetric Sheet Metal Forming |
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| Jin Daging Li Shangjian Xiao Jingrong.A Finite Strain Elastic-Plastic Finite Element Analysis for Axisymmetric Sheet Metal Forming[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1987(Z1). |
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| Authors: | Jin Daging Li Shangjian Xiao Jingrong |
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| Institution: | Jin Daging Li Shangjian Xiao Jingrong |
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| Abstract: | According to Kirchhoff's theory of elastic-plastic finite deformation of thin shell and the theory of J2 plastic flow, a mathematical model is proposed for large deformation elastic-plastic Lagrangian finite element analysis of rigid punch made of thin metal plate. With an improved direct incremental method, the stretch-form-ing procedure of a hemisphere rigid punch modelled on a Honeywell DPS 8/52 computer has been successfully perfonned. The correctness of the mathematical model and numerical results are confirmed by the grid method. |
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| Keywords: | Plates Finite Strain Elast plastic Finite element analysis Mathe-matical models Theory of thin shell Theory of flow |
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