| 薄宽带钢倾斜浪板形屈曲变形的解析研究 |
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| 引用本文： | 常铁柱,张清东,黄世清.薄宽带钢倾斜浪板形屈曲变形的解析研究[J].力学与实践,2010,32(1):54-59. |
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| 作者姓名： | 常铁柱 张清东 黄世清 |
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| 作者单位： | 北京市 中冶京诚工程技术有限公司 |
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| 基金项目： | 国家自然科学基金资助项目(50675021) |
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| 摘 要： | 薄宽带钢的倾斜浪是一种产生机理与解决对策都未知的板形缺陷。本文通过有限元仿真结合现场实测分析提出了一种倾斜浪产生机理的新解释，并且基于艾利应力函数和S. Timoshenko最小功原理建立了倾斜浪前屈曲变形的力学模型和计算方法，获得了其前屈曲应力场分布的表达式；运用伽辽金虚位移原理解法获得了其临界屈曲载荷；推导建立了薄宽带钢倾斜浪的后屈曲摄动求解方法，计算获得的后屈曲模态和有限元计算获得的瓢曲模态符合良好。研究结果可为板带材轧制过程中倾斜浪及其倾斜角度的预测和控制提供理论依据。
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| 关 键 词： | 倾斜浪 临界应力 屈曲 摄动法 |
| 收稿时间： | 2009-02-24 |
HERRINGBONE BUCKLING OF COLD ROLLED STRIP |
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| CHANG Tiezhu
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ZHANG Qingdong
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HUANG Shiqing.HERRINGBONE BUCKLING OF COLD ROLLED STRIP[J].Mechanics and Engineering,2010,32(1):54-59. |
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| Authors: | CHANG Tiezhu ZHANG Qingdong HUANG Shiqing |
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| Affiliation: | */a>;2;?;**;MCC Capital Engineering & Research Incorporation Limited/a>;Beijing 100176/a>;China;Mechanical Engineering School/a>;Beijing University of Science and Technology/a>;Beijing 100083/a>;China;School of Aerospace/a>;Tsinghua University/a>;Beijing 100084/a>;China |
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| Abstract: | The herringbone buckling(double rib buckling) of strips is a kind of serious flatness defect,but little is known about its mechanism of production.A new explanation about herringbone buckling is proposed in this paper.Based on Airy stress function and S.Timoshenko's principle of least work,a new mechanical model of herringbone buckling is established,and the prebuckling stress field in the strip is obtained.The critical buckling stress is also obtained by Galerkin's principle of virtual displacement.The pos... |
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| Keywords: | herringbone buckling critical stress buckling perturbation-variational solution strip |
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