Performance of aluminum foam-steel panel sandwich composites subjected to blast loading
Performance of aluminum foam-steel panel sandwich composites subjected to blast loading
复制标题
泡沫铝-钢板夹层复合材料的爆炸荷载性能
DOI：
10.1016/j.matdes.2012.12.003
复制
发表时间：
2013-05-01
影响因子：
8.4
通讯作者：
Zu, G. Y.
中科院分区：
文献类型：
--
作者：
Liu, H.;Cao, Z. K.;Zu, G. Y.
对泡沫铝芯夹芯板在爆炸荷载作用下的响应进行了研究，探讨了夹芯板结构对爆炸波的衰减能力及变形机理。采用熔融体过渡发泡法制备了不同密度的闭孔泡沫铝芯。对低碳钢板和泡沫铝芯夹芯板的衰减能力进行了对比研究。结果表明：与不含泡沫芯的低碳钢板相比，含泡沫芯夹层板的峰值荷载降低了61.54 ~ 64.69%；研究了泡沫铝与钢的界面以及泡沫铝的多孔结构对泡沫铝波衰减能力的影响。讨论了泡沫铝芯的变形机理。很明显，能量的耗散主要是通过裂纹的形成和扩展。对不同泡沫铝芯密度的夹层结构进行的爆破试验表明，随着泡沫铝芯密度的减小，入射到夹层结构的峰值荷载与传递到夹层结构的峰值荷载之比增大。(C) 2012 Elsevier Ltd.版权所有。
The response of sandwich panels with aluminum foam core under blast loading was conducted to investigate the blast wave attenuation ability and the deformation mechanism of the sandwich structure. Closed-cell aluminum foam cores with different densities, manufactured by molten body transitional foaming process were used in the experiment. A comparative study on the attenuation ability of mild steel plates and sandwich panels with aluminum foam core was carried out. The results showed that the peak load was reduced by 61.54-64.69% in sandwich panels with foam core compared to the mild steel plates without foam core. The effect of the interface between steel and aluminum foam as well as porous structure on the wave attenuation ability was characterized. The deformation mechanism of aluminum foam core was also discussed. It is clear that the energy was dissipated mainly by the formation and growth of cracks. Blast tests performed on the sandwich structure with different aluminum foam core densities indicated that the ratio of the peak load incident to the sandwich structure and the peak load transmitted from the sandwich structure increased as the decrease of foam core density. (C) 2012 Elsevier Ltd. All rights reserved.