舰船单元结构模型水下接触爆炸破口试验研究

Breach experiment research of vessel element structure models subjected to underwater contact explosion

以 3种舰船单元结构模型水下接触爆炸试验为基础 ,对结构模型所产生的变形、破口尺寸、破口形状进行了观测与分析 ,查找并发现结构中的薄弱环节 .提出了板架结构加强筋相对刚度概念 ,确定了破口长度的估算系数 ,同时为舰船结构在水下爆炸作用下的破口数值计算提供了试验数据 。

In order to find the weakness of the structures, the deformation of models and the dimension and shape of the breach are studied and analyzed on the basis of the underwater contact explosion experiment with three element structure models of vessel. A new factor is defined to measure the relative stiffness of the stiffener in a stiffened plate, and a coefficient of the equation to estimate the length of the breach is found out. Simultaneously, the experimental data such as an ultimate strain of material are presented.