空中爆炸冲击波作用下薄壁铝球壳体大变形响应的实验研究

Investigation on the Dynamic Displacement Response of Thin Spherical Aluminium Shell Under Blasting Shock Loading of Explosive Charge

对炸药空中爆炸冲击载荷作用薄壁铝球壳体在典型作用距离下的动态响应进行试验研究.采用空中爆炸理论设计试验参数,测试薄壁铝球壳体的变形量,得到了作用距离、装药质量与中心变形量的对应关系,进行了弹性、刚塑性假设下球壳体动态响应的理论分析对比.结果表明,试验结果与刚塑性理论分析结果吻合较好.

An investigation on the dynamic displacement response of thin spherical aluminum shell under the exploding shock loading of explosive charge is carried out. Test parameters have been determined by explosive exploding theory in air. The centre displacements of the shell have been measured. Relations among the distance, charge mass and centre displacement have been obtained. Analysis and comparison have been done with elastic, rigid-plastic hypothesis. The experimental results and rigid-plastic hypothesis analysis agree fairly well.