Studies of the Fragmentation of Spherical Aluminum Projectiles on a Heavy Mesh at Velocities of up to 7 km/s

Autor:	A. I. Leont’ev, A. V. Ponomarev, N. V. Lapichev, T. A. Shumikhin, P. N. Kalmykov, N. N. Myagkov, O. A. Sokolov, V. N. Nomakonova, A. V. Sal’nikov
Rok vydání:	2021
Předmět:	Materials science Computer simulation Projectile Alloy Fragmentation (computing) General Physics and Astronomy chemistry.chemical_element Mechanics engineering.material Tungsten 01 natural sciences chemistry Aluminium 0103 physical sciences engineering Particle Nuclear Experiment 010306 general physics Cumulative effect
Zdroj:	Journal of Experimental and Theoretical Physics. 132:177-188
ISSN:	1090-6509 1063-7761
Popis:	The results of experimental studies and numerical simulation of the fragmentation of aluminum alloy projectiles on a tungsten mesh bumper at impact velocities of up to 7 km/s are presented. The projectiles are accelerated by a two-stage light-gas gun. X-ray photography is used to observe the state of a projectile before its impact on the mesh bumper and the process of its fragmentation. The parameters of the cloud of fragments of the projectile are recorded using a thick witness plate made of AMg6 alloy placed behind the mesh bumper. Numerical simulation is performed by the smoothed particle hydrodynamic (SPH) method. Specific features of the morphology of the cloud of fragments are pointed out, and the velocities of the fragments in different parts of the cloud, as well as the arising cumulative effect, are estimated. The experimental results are compared with the results of numerical simulation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::446f1def2da5771186bd24692e3d7eef https://doi.org/10.1134/s1063776121020138 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.