钢板与泡沫铝复合板弹药包装箱的对比研究

Comparative Study of Steel Plate and Foam Aluminum Composite Plate Ammunition Packaging Box

通过改变运输箱体的材料设计了一种钢板-泡沫铝-钢板复合材料运输箱。泡沫铝虽然减振吸能效果较好,但强度较低,所以结合钢板构成多层复合抗爆结构。当冲击波作用于复合板时,由于各层之间波阻抗的差异性,能有效降低透射波的传播,与单层钢板材料相比,防爆能力得到加强。采用ANSYS/LSDYNA模拟隔板材料分别为单层钢板材料和钢板-泡沫铝-钢板材料时,主发装药爆炸对被发装药的影响。结果显示:当隔板为单层钢板材料且厚度在6mm以下时,隔板变形较大会碰撞被发装药外壳导致被发装药爆炸,随着钢板厚度的增加其防护效果增强,能够避免被发装药被引爆的临界厚度为16mm;相较于14mm单层钢板,当隔板是钢板-泡沫铝-钢板复合材料时,无论其结构为3mm、8mm、3mm还是4mm、6mm、4mm都能够避免被发装药被引爆。

According to change the material of the transport box, a composite material transport box based on steel and Aluminum foam was designed. Although foam aluminum has better energy absorption effect, the strength is low. Therefore, the multilayer composite blast resistant structure was made. When shock wave impact on compound plate, it can be effectively reduced, due to the difference of the impedance between the layers. ANSYS/LSDYNA simulation shows that donor case will impact charged case when the partition is less than 6mm.With the increase of the thickness of the steel plate, the protective effect is enhanced, and the critical thickness to avoid detonation is 16 mm. Compared with the 14 mm single layer steel plate, the same total thickness composite material can avoid detonation whether its structure is 3 mm, 8 mm, 3 mm or 4 mm, 6 mm, 4 mm.