中国舰船研究2024，Vol.19Issue(3)：86-95,10.DOI:10.19693/j.issn.1673-3185.03484
基于结构响应的舱室内爆TNT等效方法
TNT equivalency method in confined cabin based on structural response
摘要
Abstract
[Objective]This paper aims to reveal the influence of the afterburning effect of explosive materi-als in confined space explosion.[Methods]A series of TNT blast tests are performed in a confined cabin filled with two different atmospheres,air and nitrogen.The temperature,pressure-time histories and deflection of the blast-loaded steel plate are recorded.The relationship between the deformation of the target plate and the energy released by the explosive is established.On this basis,a TNT equivalent method is proposed which takes into account the afterburning effect in a confined cabin.[Results]The pressure,temperature and dy-namic response of the target plate are significantly lower in the nitrogen environment than in the air environ-ment due to the difference in the amount of energy released by the combustion of the explosive material.Thus,the energy released by the burning of TNT explosive materials and their enhancement effects should be con-sidered in blast load analysis.[Conclusion]The validity and applicability of the method are illustrated through a comparison with the existing TNT equivalent method based on quasi-static pressure.关键词
封闭爆炸载荷/后燃烧效应/TNT当量Key words
confined blast load/afterburning effect/TNT equivalency分类
交通工程引用本文复制引用
周沪,孔祥韶,罗峰,曹宇航,郑成,吴卫国..基于结构响应的舱室内爆TNT等效方法[J].中国舰船研究,2024,19(3):86-95,10.基金项目
国家自然科学基金资助项目(52171318,12202329) （52171318,12202329）
装备预研教育部联合基金资助项目(8091B022105) （8091B022105）
