南京理工大学学报（自然科学版）2025，Vol.49Issue(6)：631-639,9.DOI:10.14177/j.cnki.32-1397n.2025.49.06.001
球形非金属阻隔防爆材料水锤效应防护试验研究
Experimental study on the protection of spherical non-metallic barrier explosion-proof materials against hydrodynamic ram
摘要
Abstract
To explore the protective effects of spherical non-metallic barrier explosion-proof materials on the hydrodynamic ram effects caused by fragment impacts on liquid-filled containers,a comparative experiment was conducted using 45 steel fragments impacting liquid-filled containers:one filled with 25 mm diameter polypropylene(PP)barrier explosion-proof spheres and the other without any protective materials.The experiment utilized high-speed photography to capture the various stages of the hydrodynamic ram effect during the impact of 45 steel fragments on the container without protective materials.Pressure signals were collected from sensors positioned at the front,rear,and side of both types of liquid-filled containers for comparative analysis.The results indicate that when the fragments impact the liquid-filled container filled with PP barrier explosion-proof spheres,the pressure signals still exhibit the typical characteristics of each stages of the hydrodynamic ram effect.However,in the initial impact stage,the pressure transforms from a single high-pressure shock wave into multiple lower-pressure waves.Additionally,during the drag stage and cavity oscillation stage,the barrier explosion-proof materials effectively mitigate the pressure waves reflected from the walls of the container.The use of the barrier explosion-proof materials reduces the maximum amplitude of pressures during the two stages,with a maximum pressure amplitude reduction of 74.3%.And the maximum deformations of the front and rear walls of the container decrease by 24%and 55%respectively.This study establishes a critical experimental basis for understanding the protection mechanisms of spherical non-metallic explosion-proof materials against hydrodynamic ram in liquid-filled containers and for their engineering application in next-generation impact-resistant protection technologies.关键词
阻隔防爆材料/水锤效应防护/水锤效应压力特征/结构变形Key words
barrier explosion-proof materials/hydrodynamic ram protection/hydrodynamic ram pressure characteristics/structural deformation分类
军事科技引用本文复制引用
Guo Lei,Wang Gang,He Yuan,Wang Chuanting,He Yong..球形非金属阻隔防爆材料水锤效应防护试验研究[J].南京理工大学学报（自然科学版）,2025,49(6):631-639,9.基金项目
国家自然科学基金(U2241285 （）
62201267) （）
中央高校基本科研业务费专项资金(30925010706) （30925010706）
江苏省研究生科研与实践创新计划(KYCX24_0697) （KYCX24_0697）
