爆炸冲击波作用下靶板的塑性大变形响应研究

对四边约束方形靶板 ,在爆炸冲击波作用下的塑性大变形响应情况 ,进行了理论分析与试验研究。运用能量守恒的方法 ,同时考虑试验过程中靶板的边界约束条件 ,得到了四边约束方形靶板在爆炸冲击波作用下发生塑性大变形时挠度的半经验公式。理论计算与试验结果吻合性较好 ,这种方法可应用于板结构在爆炸冲击波作用下的毁伤或防护方面的工程预测

Study on Large Plastic Deformation Response of Target Plate under Explosive Blast Wave

The theoretical and experimental study on large plastic deformation of the target plate under explosive blast wave is conducted.With the energy conservation theory and considering the constrained boundary condition of the target plate during the experiment,the semiempirical expression of large plastic deflection of clamped square plate under explosive blast wave is derived.The experimental data comply well with the theoretical results,which could be applied to the engineering prediction of the damage or safety of the target plate under explosive blast wave in future.