A theoretical formula for predicting the folding wavelength in the rectangular columns

Abbas Niknejad

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A theoretical formula for predicting the folding wavelength in the rectangular columns

机译：预测矩形柱折叠波长的理论公式

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摘要

In this article, a theoretical relation is derived to predict the folding wavelength in the square and rectangular columns under the axial loading. For this purpose, a new deformation model of the columns during the folding progress is introduced. Based on the energy method, final equation is obtained. The derived relation shows the folding wavelength is dependant on the wall thickness and the edge length of the columns cross section and is independent of the column material. Some static folding tests are performed on the square and rectangular columns. Finally, the predictions of the theoretical formula are compared with the experimental results for which good agreement is observed.

机译：在本文中，推导了理论关系来预测在轴向载荷下方形和矩形列中的折叠波长。为此，引入了折叠过程中圆柱的新变形模型。基于能量法，得到最终方程。推导的关系表明折叠波长取决于色谱柱横截面的壁厚和边缘长度，并且与色谱柱材料无关。在正方形和矩形列上执行一些静态折叠测试。最后，将理论公式的预测结果与实验结果进行了比较，观察到了很好的一致性。

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来源
《Proceedings of the institution of mechanical engineers》 |2012年第l4期|p.293-299|共7页
作者
Abbas Niknejad;
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作者单位

Mechanical Engineering Department, Faculty of Engineering, Yasouj University, PO Box 75914-353, Yasouj, Iran;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
square column; energy method; folding wavelength; axial loading;

机译：方柱能量法折叠波长轴向载荷;

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2. A theoretical formula for predicting the instantaneous folding force of the first fold in a single cell hexagonal honeycomb under axial loading [J] . A. Niknejad, G. H. Liaghat, H. Moslemi Naeini, Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science . 2010,第11期

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A theoretical formula for predicting the folding wavelength in the rectangular columns

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