| 板料成形离散Kirchhoff理论单元模型 |
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| 引用本文： | 柳玉启,郭威.板料成形离散Kirchhoff理论单元模型[J].塑性工程学报,1995,2(4):31-39. |
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| 作者姓名： | 柳玉启 郭威 |
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| 作者单位： | 吉林工业大学 |
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| 摘 要： | 本文将离散Ｋｉｒｃｈｈｏｆｆ理论（ＤＫＴ）平板弯曲和薄膜单元的组合模型引入弹塑性有限变形的虚功率增率型原理，采用库仑摩擦定律，建立了适于具有明显弯曲效应的高效率的板料成形有限元数学模型。在此基础上模拟了方盒拉深成形过程，并与实验结果进行了比较，证明了该模型的有效性。
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| 关 键 词： | DKT单元，虚功率增率变分原理，有限元数值模拟，弯曲效应，方盒拉深 |
THE ELEMENT MODEL OF SHEET METAL FORMING BASED ON DISCRETE KIRCHHOFF THEORY |
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| Liu Yuqi, Guo Wei, Hu Ping, Li Yunxing.THE ELEMENT MODEL OF SHEET METAL FORMING BASED ON DISCRETE KIRCHHOFF THEORY[J].Journal of Plasticity Engineering,1995,2(4):31-39. |
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| Authors: | Liu Yuqi Guo Wei Hu Ping Li Yunxing |
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| Affiliation: | Jinn University of Technology 130025 |
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| Abstract: | In this paper, a mixed element model of membrane and plate--shell with Coulomb friction law based on the discrete Kirchhoff theory (DKT) is introduced into the virtual power rate principle of elastic plastic finite deformation, and an efficient finite element model of sheet metal forming suitable for being strong bending effect is proposed. On the basis of the element model, the deep--drawing processes with square punch is numerically simulated, which is compared with experimental ones in order to examine the validity of the element model. |
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| Keywords: | DKT element Virtual power rate principle Finite element numerical simulation Bending effect Deep-drawing with square punch |
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