Model of high-speed shock interaction with compatible type
DOI:
https://doi.org/10.32347/2410-2547.2020.105.64-72Keywords:
model, high-speed impactor, ball, protective obstacle, deformation, hollow cylinderAbstract
In connection with military operations, the issue of developing protection for military personnel against bullets and splinters remains an issue. Modern studies of the interaction of bullets and fragments with protective obstacles are based on the search for new types of structures and materials of protection. The focus is on the development of NATO-compliant protective structures to increase the level of protection for military personnel using low-cost, affordable materials with minimal production and intended use.
Despite some advances in the study of solid-body impact, the known results of theoretical and experimental studies do not describe the overall picture of the interaction of the element of damage and interference. When designing protective structures, only certain aspects of the shock interaction are considered, based on the absorption of the kinetic energy of the element of damage. Therefore, it remains important for the scientific and technical task - to continue the study of the process of interaction of bullets (fragments) with protective obstacles, at the stages of penetration, penetration and their departure, which will allow to develop new models of protection structure of military personnel that are relevant for military use.
The main method of studying the process of striking and punching an obstacle with a bullet (fragment) is a combination of analytical and experimental studies. Analytical methods of research are based on mathematical modeling of stages of interaction of bullets (fragments) with elements of a protective obstacle with the subsequent carrying out of corresponding mathematical calculations. Experimental research methods are based on determining the level of security and require complex research in laboratory and polygonal conditions. The combination of analytical and experimental research results makes it possible to consider the level of security more fully.
In this work the process of interaction of a ball (fragment) with the protective obstacles formed by a set of hollow cylinders of compatible type is considered. Models for determining the depth of penetration of the impactor into the obstacle in the form of a set of hollow cylinders of compatible type are proposed. The results of calculations of the depth of penetration of the ball from Kalashnikov (AK-74) in steel hollow cylinders of compatible type are presented. Further research is concerned with improving the design of armor by developing new technical solutions using the latest technologies.
References
Petruchenko O.S. Obgruntuvannia parametriv bahatosharovoi zakhysnoi konstruktsii boiovykh mashyn na osnovi neliniinykh matematychnykh modelei. (Substantiation of parameters of multilayer protective construction of combat vehicles based on nonlinear mathematical models) - Manuscript. Dissertation for the degree of Doctor of Philosophy (Candidate of Technical Sciences) in the specialty 05.02.09 - Dynamics and Strength of Machines / О.С. Petruchenko - Lviv, 2018. – 160 p.
Lapitsky S.V. Metodologiya issledovaniya slozhnykh sistem voyennogo naznacheniya (Methodology for the study of complex military systems)/ S.V. Lapitsky, A.V. Kuchinsky, A.I. Sbitnev [and others]; ed .: S.V. Lapitsky. - K.: 2013. – 477 p.
Bruhl S.T. K voprosu modelirovaniya reaktsii korpusov legkobronirovannykh mashin na deystviye udarno- impul'snykh zagruzok (On the issue of modeling the reaction of lightly armored vehicle bodies to shock-pulse loading)// Bulletin of NTU "KPI". Coll. of sciences. wash. Series: New Solutions in Modern Technologies. - Kharkiv: NTU "KPI", 2013. - № 43 (1016). - P. 46-50.
Vasilyev A.Yu. Chislennoye modelirovaniye reaktsii bronekorpusov legkobronirovanikh mashin na deystviye udarno-volnovoy zagruzki (Numerical simulation of the response of lightly armored vehicles to the effect of shock wave loading) // Mechanics and Mechanical Engineering. - KPI .: - Kharkiv, 2010. - №2. – P. 73-97.
Velichko L.D. Dynamika zakhysnoi konstruktsii pry udari kuli abo oskolka snariada (Dynamics of the protective structure when struck by a bullet or a projectile fragment) // Military Technical Collection / Academy of Land Forces. - № 13. - Lviv: АСВ, 2015. - P. 13-19.
Gerasimov A.V. Teoreticheskiye i eksperimental'nyye issledovaniya vysokoskorostnogo vzaimodeystviya tel (Theoretical and experimental studies of high-speed interaction of bodies) / Ed. A.V. Gerasimova. - Tomsk: Publisher Tom. Univ., 2007 - 572 p.
Grigoryan V.A. Materialy i zashchitnyye struktury dlya lokal'nogo i individual'nogo bronirovaniya Materials and security structures for local and individual booking (Materials and protective structures for local and individual reservations) / VA Grigoryan, IF Kobylkin, V.M. Marinin, E.N. Chistyakov - M.: Izd. RadioSoft. 2008. - 406 p.
Kovtun A.V. Modeli vzaiemodii vysokoshvydkisnoho udarnyka z zakhysnymy pereshkodamy (Models of interaction of high-speed striker with protective obstacles) / А.V. Kovtun, V.O. Tabunenko, S.I. Nesterenko. // Strength of Materials and Theory of Structures / Strength of Materials and Theory of Structures. 2019. Issue 102, –P. 207-211.
Zayarny V.I. Osnovy teorii sovmeshchennykh sosudov (Fundamentals of the theory of combined vessels)/ V.I. Zayarny. – Lviv: Publishing House of the Lviv State. University, 1972. - 124 p.
Prakticheskiye raschety na prochnost' konstruktivnykh elementov. Ch. I. (Practical strength calculations of structural elements) / A. G. Dibir, O. V. Makarov, N. I. Pekelny, G. I. Yudin, M. N. Grebennikov. - Study. allowance. – Kharkov: Nat. aerospace. Universities «Kharkov aviation. Institute », 2007. - 102 p.
Kovtun A.V. Dinamika slozhnykh mekhanicheskikh sistem so svyazyami sukhogo treniya (Dynamics of Complex Mechanical Systems with Dry Friction Bonds). // Kovtun, V.F. Grekov, VA Procopius. - Kharkov: MO, 1996. - 116 p.
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