Normal penetration of the rigid penetrator into elastic-plastic half-space with viscosity

• Autorzy: Włodarczyk E.
• Języki publikacji: EN

Abstrakty

EN

The analytical closed-form solution of the normal penetration problem of a rigid core (penetrator) of a jacket-bullet into elastic-plastic half-space (thick target) is presented in this paper. The cohesive resistance of the target, frictional effects, and acceleration of the target material iri the neghbourhood of the penetrator (virtual mass effect) is taken into consideration On the basis of the derived closed analytical formulae, influence of these parameters on the penetration depth may be investigated. Among other things, it appears from calculations that the boundary penetration depth is intensivly reduced by the force of viscous friction. Moreover, the mean value of the coefficient of viscous friction for a given penetrator target system may be determined. For this purpose it is necessary to define experimentally the penetration depth hk at a given impact velocity.

Słowa kluczowe

EN

terminal ballistics; normal penetration; jacket-bullet; rigid penetrator

PL

przenikanie; tarcie

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2007
• Tom: Vol. 55, iss. 4
• Strony: 335--344
• Opis fizyczny: Bibliogr. 7 poz., wykr.

Twórcy

autor

Włodarczyk E.

• Military University of Technology Faculty of Mechatronic S. Kaliskiego 2, 00-908 Warszawa, Poland

Bibliografia

• 1. M. E. BACKMAN, W. GOLDSMITH, The mechanics of penetration of projectiles into targets, Int. J. Engng Sci., 16, 1, 1-99 1978.
• 2. W. GOLDSMITH, Review. Non-ideal projectile impact on targets. Int. J. Impact Engng, 22, 23, 95-395, 1999.
• 3. J. S. RINEHART, J. PEARSON, Behavior of metals under impulsive loads, ASM, Cleveland, Ohio 1954.
• 4. F. F. VITMAN, N. A. ZLATIN, On process of a collision of the deformable bodies and its modeling. II. State and problem theory [in Russian], Zh.T.F., 33, 8, 1963.
• 5. E. WŁODARCZYK, Z. GŁODOWSKI, M. MICHAŁOWSKI, Penetration of undeformable projectile in metallic half-space [in Polish], Biul. WAT, 51, 10, 33-45, 2002.
• 6. C. CRANZ, Lehrbuch der Ballistik, Berlin - Springer, 1925-1927.
• 7. L. V. BIELYAKOV, F. F. VITMAN, N. A. ZLATIN, On process of a collision of the deformable bodies and its modeling. I11 - On similarity of current values of parameters of true and modeling processes [in Russian], Zh.T.F., 34, 3, 1964.