| 薄壁管料自由胀形的最佳加载路径 |
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| 引用本文： | 吕箴,孙政元,黄乃强,朱永豪.薄壁管料自由胀形的最佳加载路径[J].北京工业大学学报,1986(2). |
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| 作者姓名： | 吕箴 孙政元 黄乃强 朱永豪 |
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| 作者单位： | 北京工业大学机械工程学系锻压教研室，北京工业大学机械工程学系锻压教研室，北京工业大学机械工程学系锻压教研室，北京工业大学机械工程学系锻压教研室 |
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| 摘 要： | 本文分析了管料自由胀形过程中变形路径、集中性失稳和压缩失稳的特点,建立了最佳加载路径,即通过对轴向载荷和内压的控制而获得最大胀形比的加载路径,对自由胀形过程进行了有限元计算和实验研究。理论分析的结论和实验结果是一致的。
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The Most Effective Loading Path of Free Bulge Forming of Thin Wall Tubes |
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| Abstract: | The properties of strain paths,localized instability and buckling instability in the process of free bulge forming of tubes were analyzed. The most effective loading path,in which the axial force and the internal pressure were controlled in order to achieve a maximum radial expansion of the tubes,was established.Numerical calculation by finite element methods and experiment were carried out.Encouraging agreement was obtained between the theoretical and experimental results. |
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