The strengthening effect of polystyrene foam filling in aluminum thin-walled cylindrical tubes
The strengthening effect of polystyrene foam filling in aluminum thin-walled cylindrical tubes
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DOI：
10.1016/j.tws.2004.07.007
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发表时间：
2005-02
影响因子：
6.4
通讯作者：
A. Toksoy;M. Güden
中科院分区：
文献类型：
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作者：
A. Toksoy;M. Güden
以聚苯乙烯泡沫填充铝管为研究对象，研究了泡沫填充对薄壁圆管菱形和手风琴形变形的强化作用。16和25mm两种不同直径的空管均以菱形方式变形，而25mm管中填充泡沫由于泡沫的增稠作用，变形方式变为手风琴状。手风琴模式下的强化系数在1附近，而菱形模式下的强化系数大于1。在手风琴模式下，观察到泡沫和管独立变形。然而，在菱形模式中，泡沫在褶皱之间被压缩，导致更高的强化系数。研究了变形速率和胶粘剂的使用对填充管平均压溃载荷的影响。
The strengthening effect of foam filling in thin-walled circular tubes, deforming in diamond and concertina modes, was investigated in polystyrene foam filled aluminum tubes. Empty tubes of two different diameters (16 and 25mm) deformed in diamond mode, while foam filling changed the deformation mode into concertina in 25mm tube due to thickening effect of foam filling. The strengthening coefficient in concertina mode was found around unity, while in diamond mode it was greater than unity. In concertina mode, foam and tube were observed to deform independently. However, in diamond mode, foam was compressed in between the folds, leading to a higher strengthening coefficient. The effects of deformation rate and the use adhesive on the average crushing loads of the filled tubes were also determined.