Numerical analysis of a multi - component ballistic panel

• Autorzy: Stanisławek S. , Morka A. , Niezgoda T.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a numerical study of a two layer composite panel impacted by an AP (Armour Piercing) 14.5x118mm B32 projectile. The panel consists of a number of pyramid ceramic components supported by an aluminium plate. The studied model is compared with a reference structure in which ceramic layer is in a form of a plate. The problem has been solved with the usage of modelling and simulation methods as well as a finite elements method implemented in LS-DYNA software. Space discretization for each option was built with three dimension elements guaranteeing satisfying accuracy of the calculations. For material behaviour simulation, specific models including the influence of the strain rate and temperature changes were considered. A steel projectile and aluminium plate material were described by Johnson-Cook model and a ceramic target by Johnson-Holmquist model. In the studied panels, the area surrounding back edges was supported by a rigid wall. The obtained results show interesting properties of the examined structures considering their ballistic resistance. All tests have given clear results about ballistic protection panel response under AP projectile impact. Panels consisting of sets of pyramids are slightly easier to penetrate. Despite this fact, a ceramic layer is much less susceptible to overall destruction what makes it more applicable for the armour usage. Furthermore, a little influence of the projectile impact point and consequently a part of the pyramid, which is first destroyed, is proved.

Słowa kluczowe

EN

computational mechanics; ballistic protection; composite armour; ceramics

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 4
• Strony: 585--588
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Stanisławek S.

autor

Morka A.

autor

Niezgoda T.

• Military University of Technology Gen. S. Kaliski 2 St., 00-908 Warsaw, Poland phone: [phone], fax: [phone],

Bibliografia

• [1] Tracy, C., Slavin, M., Viechnicki, D., Ceramic failure during ballistic impact, Advances in Ceramics: Fractography of Glasses and Ceramics, 22 (1988), pp. 295–306, 1988.
• [2] Mayseless, M., Goldsmith, W., Virostek, S. P., Finnegan, S. A., Impact on ceramic targets, Journal of Applied Mechanics, 54 (1987), pp. 373–378, 1987.
• [3] Woodward, R. L., Gooch, W. A., O’Donnell, R. G., Baxter, B. J., Pattie, S. D., A study of fragmentation in the ballistic impact of ceramics, International Journal of Impact Engineering, 15 (5) (1994), pp. 605–618, 1994.
• [4] Nilsson, M., Constitutive model for Armox 500T and Armox 600T at low and medium strain rates, Swedish Defence Research Agency, TR FOI-R-1068-SE, 2003
• [5] Johnson, G. R., Cook W. H., A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High Temperatures, Proceedings of the 7th International Symposium on Ballistics, The Hague, The Netherlands, April 1983.
• [6] Panov V., Modelling of behaviour of metals at high strain rates, Cranfield University, PhD Thesis, 2005.