Penetration of individual microparticles into rigid barriers on collision of powder streams with them
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Abstract
In a number of experiments with high-velocity powder streams, ultra-deep penetration of individual microparticles into obstacles has been observed on impact of them with rigid barriers. Previous ideas about crater formation are not in a state to explain this penetration. A hypothesis is suggested and discussed for capture of microparticles by an SW front which has a finite width in real materials. From equilibrium conditions for all of the forces acting on a particle, a condition is obtained for this entrainment. A number of numerical experiments are provided which point to the competence of this hypothesis.
Keywords
Dynamical System Mechanical Engineer Equilibrium Condition Numerical Experiment Previous Idea
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Literature Cited
- 1.V. G. Gorobtsov, K. I. Kozorezov, and S. M. Usherenko, “Study of the effect of bombardment by microparticles on the structure of a steel target”, in: Powder Metallurgy, No. 6 [in Russian], Vysshaya Shkola, Moscow (1982).Google Scholar
- 2.K. I. Kozorezov, V. N. Maksimenko, and S. M. Usherenko, “Study of the effects of interaction of discrete microparticles with a solid,” in: Selected Questions of Modern Mechanics, Part 1 [in Russian] (1981).Google Scholar
- 3.“Impact, explosion, and failure,” in: Mechanics Series. News in Foreign Science No. 26 [in Russian], Mir Moscow (1981).Google Scholar
- 4.E. I. Zababakhin and N. E. Zababakhin, “Stationary displacement of a body by a shock wave,” Zh. Prikl. Mekh. Tekh. Fiz., No. 2 (1980).Google Scholar
- 5.V. V. Bashurov and N. A. Skorkin, “Problem of a spherical piston in an elastoplastic material,” ChMMSS,5, No. 5, Novosibirsk (1974).Google Scholar
- 6.S. K. Andilevko, V. G. Gorobtsov, K. I. Kozorezov, et al., “Study of the effect of interaction of microparticles with a metal target under high pressure conditions,” Fiz. Tekh. Vys. Davlenii, No. 17 (1985).Google Scholar
- 7.Ya. B. Zel'dovich and Yu. P. Raizer, Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena [in Russian], Nauka, Moscow (1966).Google Scholar
- 8.V. V. Bashurov and N. A. Skorkin, “Axisymmetrical problem of penetration of rigid bodies of rotation into deformable barriers,” Fiz.-Tekh. Probl. Razrab. Polezn. Iskop., No. 4 (1981).Google Scholar
- 9.A. I. Gulidov and V. M. Fomin, “Penetration of an absolute solid into an elastoplastic barrier,” Proc. VII All-Union Conf. on Strength and Plasticity, Gorky (1978).Google Scholar
- 10.M. L. Wilkins, “Calculation of elastoplastic flows,” in: Computer Methods in Hydrodynamics [in Russian], Mir, Moscow (1967).Google Scholar
- 11.V. V. Bashurov, Yu. S. Vakhrameev, S. V. Dem'yanovskii, et al., “Soil model and computer complex for calculating underground explosions,” Zh. Prikl. Mekh. Tekh. Fiz., No. 3 (1979).Google Scholar
- 12.J. Mainchen and S. Sak, “The ‘Tensor’ method of calculation,” in: Computation Methods in Hydrodynamics [in Russian], Mir, Moscow (1967).Google Scholar
- 13.S. G. Andreev, V. V. Bashurov, V. V. Svidinskii, et al., “Modification of the Glimm method for penetration problems,” in: Questions of Atomic Science and Technology. Series Methods and Programs of Numerical Solution of Mathematical Physics Problems, No. 3 (1985).Google Scholar
- 14.David L. Book (ed.), Finite-Difference Technique for Vectorized Fluid Dynamics Calculations, N.Y. (1981).Google Scholar
- 15.B. L. Rozhdestvenskii and N. N. Yanenko, Sets of Quasilinear Equations and Their Application to Gas Dynamics [in Russian], Moscow (1968).Google Scholar
- 16.V. V. Bashurov and N. A. Skorkin, “Mathematical modeling of penetration of an axisymmetrical body into a barrier,” ChMMSS,13, No. 2, Novosibirsk (1982).Google Scholar
- 17.V. A. Simonenko, N. A. Skorkin, and V. V. Bashurov, “Penetration of individual microparticles,” in: Questions of Atomic Science and Technology. Series Theoretical and Applied Physics, No. 1 (1988).Google Scholar
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© Plenum Publishing Corporation 1991