| 方管闭式辊弯成型过程的变形及流场 |
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| 引用本文： | 杜凤山,陆卫平,张建宇,刘才. 方管闭式辊弯成型过程的变形及流场[J]. 燕山大学学报, 1997, 0(2) |
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| 作者姓名： | 杜凤山 陆卫平 张建宇 刘才 |
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| 作者单位： | 燕山大学，长春冷弯型钢厂 |
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| 摘 要： | 采用三维弹塑性大变形有限元法模拟了方管四辊辊弯成形过程，给出了变形场、流场和瞬态应变场等场变量分布，研究了不同孔型对方管壁厚变化及金属流动的影响，对角部缺陷和内孔缺陷进行了计算机模拟分析，为建立闭式辊弯成形理论奠定了基础．
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| 关 键 词： | 塑性分析 有限元 计算机模拟 |
Deformation and Flow Fields of the Square Tube Forming of 4-roll Bending |
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| Du Fengshan Lu Weiping Zhang Jianyu Liu Cai Yanshan University Cold Bending Plant of Changchun Yanshan University. Deformation and Flow Fields of the Square Tube Forming of 4-roll Bending[J]. Journal of Yanshan University, 1997, 0(2) |
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| Authors: | Du Fengshan Lu Weiping Zhang Jianyu Liu Cai Yanshan University Cold Bending Plant of Changchun Yanshan University |
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| Affiliation: | Du Fengshan Lu Weiping Zhang Jianyu Liu Cai Yanshan University Cold Bending Plant of Changchun Yanshan University |
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| Abstract: | The 3-dimensional elastic-plastic finite element method is used to simulate the square tube forming of 4-roll bending. The distribution of some field variables are given. The change of wall thickness of the square tube and its strain fields are alse given. The defects of the angle part and internal surface are predicted on the computer. The forming theory of roll bending are established. |
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| Keywords: | plastic analysis finite element computer simulation |
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