Study on Pressure Reconstruction Method of Explosion Shock Wave

Document Type : Regular Article


School of Mechanical Engineering, Nanjing University of Science and Technology, Jiangsu Nanjing, Jiangsu 210094, China



Shock waves are one of the primary damage parameters of an ammunition explosion. Therefore, accurately obtaining the shock wave pressure distribution law after ammunition explosion is greatly significant for the ammunition damage power evaluation and the guidance of ammunition selection in the operations course. This study established the mapping function between the surface reflected and free-field shock wave pressures, considering the altitude effect on shock wave pressure. Finite element numerical simulation analysis of typical (trinitrotoluene) TNT explosive quality and static explosion shock wave pressure test were performed, and the model calculation accuracy was verified by using the obtained shock wave pressure data. The Validation results show that the model had 84% calculation accuracy and could well reflect the explosion shock wave pressure distribution law. Furthermore, the results provided a new calculation method and scientific data support for the accurate evaluation of the damage power of an ammunition explosion. Additionally, the results are significant for applications in engineering testing and the military.


Main Subjects

Bai, M. M., Y. L. Guo, F. Wang and L. M. Wang (2014a). Reconstruction of underwater explosion shock wave overpressure field based on variable grid . Tactical Missile Technology (04), 105-110.##
Bai, M. M., Y. L. Guo and L. M. Wang (2014b). Explosive overpressure field reconstruction technology based on EM algorithm. Journal of Missile, Arrow and Guidance 34 (03), 187-190.##
Bai, M. M., Y. L. Guo and L. M. Wang (2014c). Reconstruction algorithm and comparison of overpressure field of underwater explosion shock wave . Journal of Missile, Arrow and Guidance 34 (06), 71-74.##
Chen, L. M., Z. B. Li, R. Chen and D. X. Zou (2022). Experimental study on propagation characteristics of explosion shock wave in plateau environment. Explosion and Shock 42 (05), 114-124.##
Chen, X. F., X. C. Huang, Q. B. Dou (2020). Calculation method of explosion shock load in engineering analysis. Strength and Environment 47(01), 26-32.##
Chen, X. W., J. X. Wang, K. Tang, R. M. Cheng and L. Zhou (2019). Shock initiation test and simulation of near-field explosion shock wave on shielded press mounted TNT. Journal of High Voltage Physics 33 (01), 127-134.##
Cheng, F. S., P. Song, X. H. Gu, G. Nian and X. X. Zeng (2011). Numerical study on propagation and reflection of TNT charge explosion wave above rigid plane. Blasting Materials 40 (04), 1-4##
Deng, G. Q. (2019) Analysis on the influence of altitude on air shock wave parameters of conventional explosion. Protection Engineering 41 (03), 26-32.##
Du, H. M., X. Y. Cao, Z. W. He and L. Xu (2014). Analysis and verification of air and ground shock wave characteristics of near-ground explosion. Journal of Projectiles, Rockets, Rockets and Guidance 34(04), 65-68.##
Guo, Y. L., Y. Han and L. M. Wang (2014). A reconstruction method of shock wave overpressure field based on generalized inverse algorithm. Explosion and Shock 34 (06), 764-768.##
Jia, Y. F., C. Q. Zhang and J. Kang (2014). Explosion shock wave signal test and wavelet analysis. Journal of Projectiles, Rockets and Guidance 34(05), 86-89.##
Kong, X. F., L. Q. Wang, T. Yu, Z. He, H. Luo and B. M. Li (2022). Free-field shock wave test method for meteorological air cannons. Measurements 189,110456.##
Lv, Z. J., T. Y. Li Ha, C. Y. Gao, X. L. Zhu and F. L. Huang (2022). Dynamic explosion overpressure field reconstruction method based on ground reflected shock wave and genetic algorithm. Journal of Safety and Environment 22 (04), 1872-1878.##
Mizukaki, T., A. Kato and M. Mori (2020). Fundamental study on blast simulator for blast injury research. Science and Technology of Energetic Materials 81(1),17-23.##
Pang, C. Q., G. Tao, P. J. Zhou, Q. Fang and L. Liu (2018). An effective prediction method of explosion shock wave parameters in plateau environment. Vibration and Shock 37 (14), 221-226.##
Sadovskyi, M. A. (1952). Mechanical Action of Air Shock Waves of Explosion, Based on Experimental Data. Moscow, lzd Akad Nauk SSSR.##
Sun, Z., X. Miao and C. Jagadeesh (2020). Experimental investigation of the transonic shock wave/boundary-layer interaction over a shock-generation bump. Physics of Fluids 106102.##
Tanaka, K., T. Watanabe, K. Nagata, A. Sasoh, Y. Sakai and T. Hayase (2018). Amplification and attenuation of shock wave strength caused by homogeneous isotropic turbulence. Physics of Fluids 30(3), 035105.##
Taylor Marcus, K., M. Hernández Lisa, J. Stump, and T. Jeremy (2019). Blast exposure interacts with genetic variant 5HTTLPRto predict stress symptoms in military explosives personnel. Psychiatry research 280.##
Wang, F. and Y. Q. Bai (2016). Shock wave overpressure field reconstruction technology based on OSEM algorithm. Shanxi Electronic Technology (01), 15-18.##
Wang, L. Q., F. Shang, J. W. Zhang and D. R. Kong (2021). Numerical simulation experiment research on damage power of high explosive. Journal of Testing Technology 35 (01), 6-11.##
Xie, Y. C., H. B. Zhou, Y. Tao, Y. Tao and C. X. Wang (2021). Research on the reconstruction method of underwater electric explosion shock wave shape based on wavelet decomposition. Vibration and Shock 40 (05), 149-153+178.##
Yan, X. L., J. Li, H. H. Kong, L. M. Wang and Y. L. Guo (2022). Shock wave overpressure field reconstruction method based on compression sensing. Electronic Measurement Technology 45 (02), 84-90.##
Yang, X., S. Q. Shi, P. F. Cheng, and J. Pang (2007). Empirical formula comparison and numerical simulation of the propagation law of explosion shock wave in air. Sichuan Architecture 27 (5), 71-73.##
Yang, Z., Z. J. Zhang and Y. L. Xia (2016). Shock wave overpressure field reconstruction based on B-spline interpolation fitting. Science, Technology and Engineering 16 (07), 236-240.##
Yao, Y., Y. H. Ding, D. X. Pei, and X. G. Zhang (2019). Reconstruction method of shock wave curve of explosion in air. Journal of Metrology 40 (04), 636-641.##
Yu, Y. H., R. Guo, P. Song, X. H. Gu and H. W. Hu (2022). Study on overpressure characteristics of underwater two-point explosion shock wave of aluminized explosives. Journal of Underwater Unmanned Systems 30 (03), 300-307.##