钢板夹泡沫铝组合板抗爆性能研究

鉴于泡沫铝材料优异的吸能特性和夹层结构在强度、刚度上的优势,提出了分层结构为钢板-泡沫铝芯层-钢板的抗爆组合板。对厚度为10 cm、7 cm和5 cm的组合板进行了5组不同装药量的爆炸试验,考察了各板在不同装药量爆炸条件下的变形及破坏情况,并对变形破坏过程进行了理论分析。研究表明:组合板承受爆炸冲击荷载时,通过局部压缩变形和整体弯曲变形吸收能量。钢板相同时,适当增大泡沫铝芯层厚度,增强面板与芯层间连接,可提高该组合板的抗爆性能,防止组合板发生剥离,减小其承受爆炸冲击荷载时产生的变形。

Anti-blast performance of aluminum foam-core sandwich panels

Aluminum foam core sandwich panels used as the blast resistant process excellent performance of energy absorption and also have advantages in strength and rigidity. Five different doses of explosives were applied to test the sandwich panels with the thickness of 10 cm,7 cm and 5 cm. For each panel,the deformation and failure under different explosive loading conditions were investigated. The process of deformation and failure were analyzed. The results show that aluminum foam core sandwich panels with the same thickness of steel plate consume energy mainly by local compression deformation and overall bending. To improve the anti-blast performance of sandwich panels,it is effective to increase the thickness of the foam core or strengthen the connection between the foam core and face sheets. The deformation of the sandwich panels will be smaller under explosive impact and it can also prevent the face sheets being detached from the foam core.