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首页> 外文期刊>Composite Structures >Effect of aluminum closed-cell foam filling on the quasi-static axial crush performance of glass fiber reinforced polyester composite and aluminum/composite hybrid tubes
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Effect of aluminum closed-cell foam filling on the quasi-static axial crush performance of glass fiber reinforced polyester composite and aluminum/composite hybrid tubes

机译：铝闭孔泡沫填充对玻璃纤维增​​强聚酯复合材料和铝/复合杂化管准静态轴向破碎性能的影响

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摘要

The effect of Al closed-cell foam filling on the quasi-static crushing behavior of an E-glass woven fabric polyester composite tube and thin-walled Al/polyester composite hybrid tube was experimentally investigated. For comparison, empty Al, empty composite and empty hybrid tubes were also tested. Empty composite and empty hybrid tubes crushed predominantly in progressive crushing mode, without applying any triggering mechanism. Foam filling was found to be ineffective in increasing the crushing loads of the composite tubes over the sum of the crushing loads of empty composite tube and foam. However, foam filling stabilized the composite progressive crushing mode. In empty hybrid tubes, the deformation mode of the inner Al tube was found to be a more complex form of the diamond mode of deformation of empty Al tube, leading to higher crushing load values than the sum of the crushing load values of empty composite tube and empty metal tube. The foam filling of hybrid tubes however resulted in axial splitting of the outer composite tube due to the resistance imposed by the foam filler to Al tube inward folding and hence it was ineffective in increasing crushing load and SAE values over those of empty hybrid tubes.
机译：实验研究了铝闭孔泡沫填充对电子玻璃机织聚酯复合管和薄壁铝/聚酯复合管的准静态破碎行为的影响。为了比较，还测试了空的Al，空的复合材料和空的混合管。空的复合材料管和空的混合管主要以渐进式破碎模式进行破碎，而无需使用任何触发机制。发现泡沫填充不能有效地增加复合管的破碎载荷超过空复合管和泡沫的破碎载荷之和。然而，泡沫填充稳定了复合材料的渐进破碎模式。在空混合管中，发现内部铝管的变形模式是空铝管的菱形变形模式的更复杂形式，从而导致比空复合管的破碎载荷值总和更高的破碎载荷值和空的金属管。然而，由于泡沫填充物对Al管向内折叠所施加的阻力，混合管的泡沫填充导致外部复合管的轴向裂开，因此与空的混合管相比，在增加破碎负荷和SAE值方面无效。

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