鉴于泡沫铝材料优异的吸能特性和三明治型组合构件在强度、刚度上的优势，针对分层结构为钢板-泡沫铝芯层-钢板的100mm厚抗爆组合板进行了装药量为1.0kg TNT的接触爆炸试验，考察了组合板在接触爆炸条件下的变形及破坏情况，并对组合板的变形破坏过程进行了理论分析和数值模拟。研究表明：组合板承受接触爆炸荷载时，主要通过局部压缩变形和整体弯曲变形吸收耗散能量，上下面板与芯层间易发生剥离现象。钢板相同时适当增大泡沫铝芯层厚度，泡沫铝芯层相同时增加钢板厚度，均可减小组合板承受接触爆炸冲击荷载时产生的变形破坏，提高其抗爆性能。
Abstract
Aluminum foam processes excellent performance of energy absorption. Sandwich panels have advantages in strength and rigidity. A contact blast with dose of 1.0kg was carried out to test the 100mm-thickness sandwich panel. The deformation and failure of the panel under contact blast loading conditions were investigated. The process of deformation and failure was researched by theoretical analysis and numerical simulation. Researches show that the aluminum foam-core sandwich panel consumed energy by local compression deformation and overall bending. The face sheets may be detached from the foam core. To reduce the deformation of the sandwich panel, it is effective to increase the thicknesses of foam core or face sheets. That way, the anti-blast performance of the sandwich panel will be improved.
关键词
接触爆炸 /
泡沫铝 /
组合板 /
变形破坏 /
试验研究 /
理论分析 /
数值模拟
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Key words
Contact blast /
Aluminum foam /
Sandwich panel /
Deformation and failure /
Experimental investigation /
Theoretical analysis /
Numerical simulation
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参考文献
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