| 异型截面筋条压弯稳定性分析及数值模拟研究 |
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| 引用本文： | 任丽梅,王忠堂,刘劲松,张士宏.异型截面筋条压弯稳定性分析及数值模拟研究[J].塑性工程学报,2003,10(5):39-41,45. |
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| 作者姓名： | 任丽梅 王忠堂 刘劲松 张士宏 |
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| 作者单位： | 1. 沈阳工业学院,材料科学与工程系,沈阳,110168
2. 中国科学院金属研究所,沈阳,110016 |
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| 摘 要： | 对于成形带筋整体壁板,控制筋条的变形量和防止筋条失稳是此项技术的关键,本文基于对筋条弹塑性弯曲的理论分析,给出了异型截面筋条压弯时的应力应变表达式,并对筋条压弯变形稳定性进行了分析。此外,本文应用MARC有限元软件对筋条压弯过程中的失稳现象进行了数值模拟。
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| 关 键 词： | 筋条 压弯 稳定性 有限元模拟 |
| 文章编号： | 1007-2012(2003)05-0039-03 |
Analysis and numerical simulation on stability in irregular section of ribs bending process |
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| REN Li-mei WANG Zhong-tang.Analysis and numerical simulation on stability in irregular section of ribs bending process[J].Journal of Plasticity Engineering,2003,10(5):39-41,45. |
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| Authors: | REN Li-mei WANG Zhong-tang |
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| Abstract: | It is critical to control the deformation degree of the ribs and avoid the defects during the forming of wing-skin panel with grid-type ribs. In this paper, the distribution rule of stress and strain in ribs is given, based on the elastic-plastic bending theory. The intability phenomena including buckling and cracking occurred in ribs bending process is simulated by MARC. |
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| Keywords: | ribs bend forming stability FEM |
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