空中接触爆炸载荷作用下舰船加载方式与破口分析

摘要

基于爆轰理论及理想刚塑性材料模型假定,对考虑舰船结构对爆轰产物扰动的载荷特点进行简单阐述,并进行载荷换算.本文的加载方式区别于传统的直接药包法,采用直接加载法.对空中接触爆炸进行数值模拟分析,验证采用压力时间历程曲线加载的可行性.并对空中接触爆炸破口大小进行分析,与经验公式计算值进行对比,从而验证载荷换算与数值分析结合应用的合理性,为研究提高舰船抗冲击能力提供参考依据.%Based on explosive theory and the assumption that rigid-plastic material is ideal, and considering the interruption of warship structure to the explosive product, the loading is elaborated and analyzed. In this paper, the loading mode that is direct loading method is different from the traditional method. Through the numerical simulation analysis of air contact explosion, the feasibility of the loading method of using pressure-time-process curve is proved. By analyzing the size of crevasse under air contact explosion and comparing it with the empirical formula value, it is validated that the rationality of combined application of load conversion and numerical analysis. The paper provides the reference for increasing the shock resistance of warship.