Experimental and numerical studies of foam-filled sections
Experimental and numerical studies of foam-filled sections
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DOI：
10.1016/s0734-743x(99)00036-6
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发表时间：
2000-05-01
影响因子：
5.1
通讯作者：
Langseth, M
中科院分区：
文献类型：
--
作者：
Santosa, SP;Wierzbicki, T;Langseth, M
对泡沫铝填充截面在轴向压缩载荷作用下的破碎行为进行了全面的实验和数值研究。采用非线性动态有限元方法模拟准静态试验条件。预测的破碎力和褶皱形态与实验结果吻合较好。在数值模拟的基础上，提出了计算泡沫填充截面平均破碎力的简单封闭解。发现填充柱平均破碎力的增加与泡沫抗压阻力和柱截面积呈线性关系。对于各种柱的几何形状、材料和泡沫强度，所提出的解决方案在实验数据的8%以内。(C) 2000 Elsevier Science Ltd.版权所有。
A comprehensive experimental and numerical studies of the crush behavior of aluminum foam-filled sections undergoing axial compressive loading is performed. Non-linear dynamic finite element analyses are carried out to simulate quasi-static test conditions. The predicted crushing force and fold formation are found to be in good agreement with the experimental results. Based on the numerical simulations, simple closed-form solution is developed to calculate the mean crushing force of the foam-filled sections. It is found that the increase of mean crushing force of a filled column has a linear dependence with the foam compressive resistance and cross-sectional area of the column. The proposed solution is within 8% of the experimental data for wide range of column geometries, materials and foam strengths. (C) 2000 Elsevier Science Ltd. All rights reserved.