| 管材弯曲时横截面畸变的试验及有限元分析 |
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| 引用本文： | 何花卉,鄂大辛,胡新平,李延民,田鑫. 管材弯曲时横截面畸变的试验及有限元分析[J]. 现代制造工程, 2006, 0(11): 40-42 |
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| 作者姓名： | 何花卉 鄂大辛 胡新平 李延民 田鑫 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081;中国航天科技集团首都机械厂,北京,100047 |
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| 摘 要： | 在管材弯曲变形试验的基础上,针对管材弯曲过程中的管横截面形状畸变进行有限元分析,模拟所得的变形趋势与试验结果基本吻合。通过分析指出,弯管横截面短轴变化率大于长轴变化率,与弯曲外侧管壁产生较大等效应变有关。另外,由于弯曲变形扩散,使得弯曲终止端的直管段部分产生了一定量的等效应变。
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| 关 键 词： | 管材弯曲 有限元模拟 横截面畸变 长、短轴变化率 |
| 文章编号： | 1671-3133(2006)11-0040-03 |
| 修稿时间： | 2006-06-08 |
Experimental analysis and finite element simulation of cross-sectional distortions in tube bending |
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| He Huahui,E Daxin,Hu Xinping,Li Yanmin,Tian Xin. Experimental analysis and finite element simulation of cross-sectional distortions in tube bending[J]. Modern Manufacturing Engineering, 2006, 0(11): 40-42 |
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| Authors: | He Huahui E Daxin Hu Xinping Li Yanmin Tian Xin |
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| Abstract: | On the basis of experimental analysis of tube bending,finite element simulation was used dealing with the cross-sectional distortions.The trend of deformations of cross-sections is basically conformed to the test values.It is found that the variation-rate of major axis of the cross-section is greater than the minor axis,which is associated with the greater equivalent strain of the outside wall of the bent tube.Besides,some equivalent strain also exists in the straight tube section beyond the terminal bend,due to the diffusion of deformation. |
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| Keywords: | Pipe bending Finite element simulation Cross-sectional distortion Variation-rate of major axis and minor axis |
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