| 截面尺寸对薄壁压杆双重非线性稳定的影响 |
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| 引用本文： | 闫龙海.截面尺寸对薄壁压杆双重非线性稳定的影响[J].科学技术与工程,2012,12(10):2404-2406. |
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| 作者姓名： | 闫龙海 |
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| 作者单位： | 黑龙江科技学院理学院,哈尔滨,150027 |
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| 基金项目： | 黑龙江科技学院青年教师基金 |
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| 摘 要： | 在荷载作用下薄壁压杆破坏的主要形式是屈曲失稳。考虑材料和几何双重非线性影响,基于有限元分析软件AN-SYS对薄壁压杆进行了稳定数值仿真分析。采用正交试验设计方法设计试验,研究工字型截面尺寸效应对结构稳定承载力的影响,通过方差分析确定各影响因素的比例。结果表明:翼缘宽度对稳定极限载荷的影响最大,翼缘厚度次之,而腹板高度和腹板厚度对稳定极限载荷影响最小不显著。
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| 关 键 词： | 屈曲失稳 双重非线性 ANSYS 正交试验设计方法 |
| 收稿时间： | 2012/1/17 0:00:00 |
| 修稿时间： | 2012/2/17 0:00:00 |
Effcets of Sectional Dimension on Bi-nonlinear Stability of Thin-walled Compressive Bar |
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| yanlonghai.Effcets of Sectional Dimension on Bi-nonlinear Stability of Thin-walled Compressive Bar[J].Science Technology and Engineering,2012,12(10):2404-2406. |
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| Authors: | yanlonghai |
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| Institution: | (College of Science,Heilongjiang Institute of Science and Technology,Harbin 150027,P.R.China) |
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| Abstract: | The main failure form of thin-walled compressive bar is buckling under load. With material and geometry bi-nonlinear influence, the author makes stability numerical simulation analysis of thin-walled compressive bar based on finite element software ansys. Orthogonal experimental method is adopted to design experiments, the author studies effects of sectional dimension of I-shaped cross-section on stability ultimate loads, and determines influence ratio of different factors through analysis of variance The results indicate that flange width is most effective, flange thickness takes second place, sternum depth and thickness do little for ultimate load. |
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| Keywords: | buckling bi-nonlinear ansys the orthogonal experimental design |
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