Influence of the Wave Shaper Position on Jet Formation and Penetration Depth
The article presents the influence of the wave shaper position on the jet formation and penetration depth of a shaped charge, which uses the liner of the PG-7VM warhead by numerical method and empirical method. The results show that, when moving the plexiglass wave shaper position towards the liner apex, jet tip velocity and jet velocity distribution increase. In addition, the results of the study also pointed out the existence of the wave shaper position at which the penetration depth is greatest. They indicate a match between the simulation and empirical results. The differences between simulated and empirical penetration depth are less than 15%. The results of the study are the basis for the evaluation of the influence of the wave shaper position on the liner collapse and the reasonable use of the wave shaper in the structure of the shaped charge.
ANDREEV, S.G., BABKIN, A.V., BAUM, F.A., IMKHOVIK, N.A., KOBYLKIN, I.F., KOLPAKOV, V.I., LADOV, S.V., ODINTSOV, V.A., ORLENKO
L.P., OKHITIN, V.N., SELIVANOV, V.V., SOLOVIEV, V.S., STANYUKOVICH, K.P., CHELYSHEV, V.P. and SHEKHTER, B.I. Physics of Explosion (in Russian). Moscow: Fizmatlit, 2002. ISBN 5-9221-0219-2.
ZHU, C.S., HUANG, Z.X., ZU, X.D. and XIAO, Q.Q. Mach Wave Control in Explosively Formed Projectile Warhead. Propellants, Explosives, Pyrotechnics, 2014, vol. 39, no. 6, p. 909-915. https://doi.org/10.1002/prep.201400106.
ZU, X.D., HUANG, Z.X., ZHU, C.S. and XIAO, Q.Q. Study of Detonation Wave Contours in EFP Warhead. Defence Technology, 2016, vol. 12, no. 2, p. 129-133. https://doi.org/10.1016/j.dt.2016.01.002.
GUO, H.G., ZHENG, Y.F., TANG, L., YU, Q.B., GE, C. and WANG, H.F. Effect of Wave Shaper on Reactive Materials Jet Formation and Its Penetration Performance. Defence Technology, 2019, vol. 15, no. 4, p. 495-505. https://doi.org/10.1016/j.dt.2019.05.005.
NAEEM, K. and HUSSAIN, A. Numerical and Experimental Study of Wave Shaper Effects on Detonation Wave Front. Defence Technology, 2018, vol. 14, no. 1, p. 45-50. https://doi.org/10.1016/j.dt.2017.11.005.
GÜREL, E. Modeling and Simulation of Shaped Charges [on line]. [Master’s Thesis]. Ankara: Middle East Technical University, 2009. 130 p. [viewed 2019-11-02]. Available from: https://etd.lib.metu.edu.tr/upload/12610830/index.pdf
ELSHENAWY, T.A.E. Criteria of Design Improvement of Shaped Charges Used As Oil Well Perforators [on line]. [PhD Thesis]. Manchester: University of Manchester, 2012. 253 p. [viewed 2019-10-15]. Available from: https://www.escholar.manchester.ac.uk/uk-ac-man-scw:183508
ANSYS Autodyn User’s Manual [on line]. Canonsburg: SAS IP, 2013. 502 p. [viewed 2019-10-22]. Available from: https://vdocuments.net/ansys-autodynusers-manual.html
URTIEW, P.A., VANDERSALL, K.S., TARVER, C.M., GARCIA, F. and FORBES, J.W. Shock Initiation Experiments and Modeling of Composition B And C-4. In Proceedings of the 13th International Detonation Symposium. Norfolk: Lawrence Livermore National Laboratory, 2006, p. 929-939. https://doi.org/10.1134/S1990793108020036.
VAZIRI, M.R., SALIMI, M. and MASHAYEKHI, M. A New Calibration Method for Ductile Fracture Models as Chip Separation Criteria in Machining. Simulation Modelling Practice and Theory, 2010, vol. 18, no. 9, p. 1286-1296. https://doi.org/10.1016/j.simpat.2010.05.003.
How to Cite
Copyright (c) 2020 Advances in Military Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
Users can use, reuse and build upon the material published in the journal for any purpose, even commercially.