Numerical study of the shape effect in the ceramic based ballistic panels

• Autorzy: Morka A. , Jackowska B. , Niezgoda T.
• Języki publikacji: EN

Abstrakty

EN

The numerical investigations have been performed to determine the front surface shape effect in the cer based armour systems. Different shapes of ceramic elements were analyzed, including hemispheres and pyramids with respect to standard flat tiles. The influence of the impact point location was also under considerations. The Computer simulations were performed with the Element Free Galerkin Method (EFG) implemented in LS-D code. An impact of the 14.5xll8mm B32 armour piercing projectile on the A12O3 different shape elements backe 7017 aluminium alloy plate was analyzed. Full 3D models of the projectile and targets were developed with strain, rate and temperature dependent material constitutive relations. The models of the projectile, ceramic and aluminium alloy targets were validated with utilization of the experimental data found in literature. The obtained results confirm, the preliminary presumptions, that the shape of the front surface can significant role in the overall ballistic resistance of the panel. Particularly projectile-target initial contact area st to be important factor as showed by impact point location analysis. The conclusions presented in this paper can be applied to develop modern impact protection panels where the appropriate balance between the mass and protection level must be accomplished.

Słowa kluczowe

EN

computational mechanics; impact problem; armour perforation; ballistic resistance; ceramic armour

• 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: 2009
• Tom: Vol. 16, No. 4
• Strony: 539--548
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Morka A.

autor

Jackowska B.

autor

Niezgoda T.

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

Bibliografia

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