薄板在接触爆炸载荷作用下的破坏分析

Damage of thin plate subjected to contact explosion loading

对薄板在接触爆炸载荷作用下的塑性动力响应问题进行了理论研究.根据板受接触爆炸压力载荷的大小和应变率的不同将板划分为不同的区域,应用不同的本构关系进行研究,得到爆炸的破坏范围.通过算例进行验证,并与经验公式进行了比较,结果基本上是合理的.可应用于舰船结构在爆炸冲击波作用下的毁伤或防护方面的预测,从而为舰船的安全防护设计提供理论依据.

The plastic deformation of thin plate subjected to contacted explosion loading was studied. The plate is calculated and divided into three region based on the magnitude of shock wave pressure and strain rate. Different region has different constitutive models. The destructive area can be concluded under contact explosive. The result is reasonable compared with experiential value. The method can be applied to predict the damage Or safety of the naval panels under explosive blast wave and can also provide a theoretical reference for safety defense design of a warship.