Anti-explosion performance and dynamic response of an innovative multi-layer composite explosion containment vessel  

作　　者：Zhen Wang Heng Chen Qi Yuan Wenbin Gu Xingbo Xie Hongwei Li 

机构地区：[1]College of Field Engineering,Army Engineering University of PLA,Nanjing 210007,China [2]College of Civil Engineering and Architecture,Southwest University of Science and Technology,Sichuan,Mianyang 621010,China

出　　处：《Defence Technology（防务技术）》2024年第6期105-121,共17页Defence Technology

基　　金：supported by the National Natural Science Foundation of China (Grant No.11902157);Natural Science Foundation of Jiangsu Province (Grant No.BK20180417);the Scientific and Technological Innovation Project of Army Engineering Univeristy of PLA (Grant No.KYGYZXJK150025)。

摘　　要：An innovative multi-layer composite explosion containment vessel(CECV)utilizing a sliding steel platealuminum honeycomb-fiber cloth sandwich is put forward to improve the anti-explosion capacity of a conventional single-layer explosion containment vessel(SECV).Firstly,a series of experiments and finite element(FE)simulations of internal explosions are implemented to understand the basic anti-explosion characteristics of a SECV and the rationality of the computational models and methods is verified by the comparison between the experimental results and simulation results.Based on this,the CECV is designed in detail and a variety of FE simulations are carried out to investigate effects of the sandwich structure,the explosive quantity and the laying mode of the fiber cloth on anti-explosion performance and dynamic response of the CECV under internal explosions.Simulation results indicate that the end cover is the critical position for both the SECV and CECV.The maximum pressure of the explosion shock wave and the maximum strain of the CECV can be extremely declined compared to those of the SECV.As a result,the explosive quantity the CECV can sustain is up to 20 times of that the SECV can sustain.Besides,as the explosive quantity increases,the internal pressure of the CECV keeps growing and the plastic deformation and failure of the sandwich structure become more and more severe,yielding plastic strain of the CECV in addition to elastic strain.The results also reveal that the laying angles of the fiber cloth's five layers have an impact on the anti-explosion performance of the CECV.For example,the CECV with fiber cloth layered in 0°/45°/90°/45°/0°mode has the optimal anti-capacity,compared to 0°/0°/0°/0°/0°and 0°/30°/60°/30°/0°modes.Overall,owing to remarkable anti-explosion capacity,this CECV can be regarded as a promising candidate for explosion resistance.

关 键 词：Explosive container Honeycomb-fiber cloth ANTI-EXPLOSION Aluminum honeycomb core COMPOSITE 

分 类 号：TB33[一般工业技术—材料科学与工程] X932[环境科学与工程—安全科学]