Abstract
The breach of a steel column target (Steel 45, 120 mm in diameter) by an inward-cutting circular shaped charge is considered. The jet penetration process is simulated by a 3D model run in the ANSYS/LS-DYNA program. The results are compared with actual tests, where photographs of the jet penetration process allowed observation of detonation forms, timing of the jets arising at the cross section of the detonation points, and detonation wave collision points. Different penetration effects are observed with 2-, 4-, or 8-point symmetrical synchronous initiation of detonation. With 2-point initiation, the circular-shaped charge can basically cut off the steel column target, but 4- and 8-point initiation is more effective. A greater number of detonation points provides more detonation wave collision points, higher jet velocity, earlier jet-target contact, greater penetration depth, and more rapid cutting of the target.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. S. Kong, S. T. Liu, S. J. Zhang, et al., “Development of Ringed-Blast-Cutter and its Application in Decommission of Nuclear Installation,” Nucl. Powel Eng. 22 (3), 276–280 (2001).
Z. Y. Jing and S. J. Zhang, “Special Blasting Technologies for Oil-Gas Well,” Eng. Blasting 9 (1), 32–37 (2003).
P. J. Liu, G. Q. He, J. Li, and J. Chen, “Experimental Investigation on Thrust Termination Realized by the Explosive Incision Method,” J. Solid Rocket Technol. 29 (2), 107–109 (2006).
S. Z. Wu and W. B. Gu, “Experimental and Three-Dimensional Numerical Simulation for Influence of End Constraint on Jet Formation of Cuneiform Cover Cutter,” Chin. J. Energ. Mater. 21 (6), 806–811 (2013).
S. Z. Wu, W. B. Gu, Y. C. Li, et al., “Jet Formation Performance of Circular Shaped Charge of Cutting Inward,” Chin. J. Energ. Mater. 25 (11), 896–902 (2017).
D. Novotney and M. Mallery, “Historical Development of Linear Shaped Charge,” in 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conf. and Exhibit, AIAA, Cincinnati, July 8–11, 2007, p. 5141.
J. Petit, V. Jeanclaude, and C. Fressengeas, “Breakup of Copper Shaped-Charge Jets: Experiment, Numerical Simulations, and Analytical Modeling,” J. Appl. Phys. 98 (12), 563–572 (2005).
F. Rondot, “Tracking the “Poorness” of a Linear Shaped Charge,” in 23rd Int. Symp. on Ballistics, Tarragona, Spain April 16–20, 2007, pp. 169–176.
L. C. Yang and P. H. Do Ian, “Titan IVB Linear Shaped Charge Assembly Explosive Train Transfer Reliability,” in 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, AIAA, Salt Lake City, July 8–11, 2001, p. 3220.
H. S. Kim, T. Madsen, J. Pincay, et al., “Application of Linear Shaped Charge for Warhead Venting,” in 23rd Int. Symp. on Ballistics, Tarragona, Spain, April 16–20, 2007, pp. 231–238.
S. Lim, “Steady State Equation of Motion of a Linear Shaped Charges Liner,” Int. J. Impact Eng. 44 (3), 10–16 (2012).
M. Johnsto and, S. Lim, “Numerical Observation of the Jet Flight Patterns of Linear Shaped Charges,” Appl. Sci. 2, 629–640 (2012).
G. Yang, X. Han, and D. A. Hu, “Computer Simulation of Two-Dimensional Linear-Shaped Charge Jet Using Smoothed Particle Hydrodynamics,” Eng. Comput. 28 (1), 58–75 (2011).
S. Z. Wu, W. B. Gu, J. Q. Liu, and X. F. Li, “Test and Three-Dimensional Numerical Simulation of Penetrating Steel Ingot by Linear Shaped Charge with Oval Liner,” Chin. J. Energ. Mater. 22 (5), 600–606 (2014).
M. S. Ci and Y. Q. Gu, “The Constitutive Model and Data of Metal under the Conditions of Great Transmutation, High Strain Rate and High Temperature,” Technol. Project. Rockets 3, 32–44 (1998).
G. Chen, Z. F. Chen, W. F. Xu, et al., “Investigation on the J–C Ductile Fracture Parameters of 45 Steel,” Explos. Shock Waves 27 (2), 131–135 (2007).
S. Z. Wu, W. B. Gu, and X. F. Li, “Penetration of Steel Ingot by Linear Shaped Charge with Cuniform Cover,” Explos. Shock Waves 36 (3), 353–358 (2016).
C. B. Li, M. J. Pei, and Z. W. Shen, “Three-Dimensional Numerical Simulation of the High Velocity Rod-Shaped Projectile,” Chin. J. High Pressure Phys. 21 (2), 165–172 (2007).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © Sh.-Zh. Wu, X.-A. Fang, Y.-Ch. Li, Zh.-R. Gao, Q.-A. Liu, J.-Q. Liu, J.-L. Xu, W.-B. Gu.
Rights and permissions
About this article
Cite this article
Wu, SZ., Fang, XA., Li, YC. et al. Jet Penetration Effect of an Inward-Cutting Circular Shaped Charge with Different Number of Detonation Points. Combust Explos Shock Waves 55, 750–758 (2019). https://doi.org/10.1134/S0010508219060182
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0010508219060182