Research on influence of impact of microparticles and sewing needles on destruction of solid bodies

• Autorzy: Khristoforov B. D.
• Języki publikacji: EN

Abstrakty

EN

Impact of powders and sewing needles accelerated by explosion on various obstacles has been studied. Formation of channels up to 100 particle diameters in length has been observed when corundum and tungsten powders impacts on steel and duralumin at speeds up to 2 km/s. A mechanism of such super deep penetration of powder jets into metals has been proposed. The possibility of destroying by needles such objects as plexiglass blocks, antimeteorite screens, containers with elastic and explosive materials with a released energy exceeding the energy of needles has been shown. At impact speeds up to 400 m/s the depth of needles penetration into metals is 3-5 times higher than the one calculated for pointed rods at plastic work. The obtained results can be useful for modeling of impact of meteorites, space scraps and technological wasteson space aircrafts and their components.

Słowa kluczowe

EN

impact; microparticles; needles; obstacles; penetration; destruction; modeling; striker

PL

oddziaływanie; mikrocząstki; igły; przeszkody; penetracja; zniszczenie; modelowanie; iglica

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2010
• Tom: Vol. 58, iss. 3/4
• Strony: 131--138
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Khristoforov B. D.

• 38 building 6, Leninsky prospect, Moscow, 119334, Russian Federation,

Bibliografia

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• 2. S. S. Grigoryan, Dynamics of impact, Mir Publishers, Moscow, 1985.
• 3. S. S. Grigoryan, On the nature of super deep penetration of hard microparticles in hard materials, Dokladi AN SSSR, 202, 6, 1319–1323, 1987.
• 4. K. I. Kozorezov, V. I. Maksimenko, S. M. Ushirenko, Selected problems of modern mechanics. Part 1, Moscow State University, Moscow, 1981.
• 5. V. O. Soloviev, B. D. Khristoforov, Development of methods for simulation of highpower radiation on the walls of the reactor chamber pulsed nuclear energy devices, Problems of Mechanic Engineering, Automation, 3, 56–61, 2008.
• 6. B. D. Khristoforov, Experimental simulation of the impact of space dust and debris on aircraft and their components, Cosmic Research, 3, 263–268, 2011.
• 7. K. A. Alekseevskii, On the penetration of the rod in the barrier at high speed, Fizika Gorenia i Vzryva, 2, 99–104, 1966.