Comparison of the hydrodynamic ram caused by one and two projectiles impacting water-filled containers

Ji, Yangziyi; Li, Xiangdong; Zhou, Lei; Lan, Xiaoying; Chen, Anran

doi:10.1016/j.ijimpeng.2019.103467

Cited by 22 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The plastic deformation of walls in terms of kinetic energy and caliber-radius-head of fragment was presented. Recently, Ji et al (2020) considered the cumulative damage of water-filled tanks under high velocity impact and found that the cumulative HRAM effect caused by second fragment was decreased with the increasing of impact interval. Then, Faucher et al (2019) proposed a high-resolution numerical method to predict the response and failure of liquid-filled tank under the combined effect of fluid-structure interaction and impact, and the validity of the model illustrated the reasonability of the further analysis of HRAM mechanism.…”

Section: Introductionmentioning

confidence: 99%

Effect of baffles on hydrodynamic ram and damage of storage tank under fragment impact

Tang

Liu

Zhao

et al. 2022

AEAT

View full text Add to dashboard Cite

Purpose Fragment impact is one of the main threats for the safety of storage tank in aircraft. This study aims to investigate the influence of inserted baffle on hydrodynamic ram (HRAM) and damage of storage tank to optimize the protective performance of storage tank under fragment impact. Design/methodology/approach The characteristics of initial shock wave, cavity evolution, velocity attenuation of fragment and anti-penetration performance of baffle-inserted tanks were evaluated by experimental and numerical methods. Findings Results indicated that the inserted baffle in tank could significantly increase the velocity attenuation rate of fragment in water. The volume of the second cavity caused by the inserted baffle rapidly decreased with the baffle position moving backward. For the baffle-inserted tank, the deformation of the front and rear walls was substantially weakened, and the alleviating effect for front wall was more significant. Comparing with the ordinary storage tank, the inserted baffle at normalized position 0.25, 0.5 and 0.75 in tank made the ballistic limit velocity of storage tank increasing by 118.3%, 20.0% and 54.0%, respectively. Originality/value The findings of this work illustrating the HRAM history and damage map of storage tanks after inserted baffle could provide a convenient approach to improve the anti-penetration performance of storage tanks effectively.

show abstract

Section: Introductionmentioning

confidence: 99%