Abstract
An experimental investigation of the ballistic performance of composite armor with geometric modifications was carried out. The armor was simulated using polymeric materials. Four different geometric modifications were incorporated into the front plate of the armor, and two different adhesives were considered in this study. High-speed photography was employed to observe the real-time evolution of impact damage and to obtain the projectile penetration history. The nature and extent of damage for each modification and adhesive was estimated by postmortem inspection of the impacted armor and was compared to that obtained in unmodified armor of equal weight. The results of the study indicate that the geometric modifications after the nature and extent of damage significantly compared to conventional composite armor. The strong adhesive causes tearing of the back plate, whereas the compliant adhesive results in extensive delamination without any back plate damage. The modifications assist in spreading the damage laterally away from the impact site, thus distributing the load onto a larger area of the back plate. Calculations using a one-dimensional theoretical model also conclude that geometrical modifications improve the ballistic performance of the armor.
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References
Zaid, M. andPaul, B., “Mechanics of High Speed Projectile Perforation,”J. Franklin Inst.,264,117–126 (1958).
Caler, C.A. andGoldsmith, W., “Plastic Deformation and Perforation of Thin Plates Resulting from Projectile Impact,”Int. J. Solids Struct.,7,863–881 (1971).
Awerbuch, J. andBodner, S.R., “Analysis of the Mechanics of Perforation of Projectiles in Metallic Plates,”Int. J. Solids Struct.,10,671–684 (1974).
Awerbuch, J. andBodner, S.R., “Experimental Investigation of Normal Perforation of Projectiles in Metallic Plates,”Int. J. Solids Struct.,10,685–699 (1974).
Forrestal, M.J. andLuk, V.K., “Perforation of Aluminum Armor Plates with Conical-nose Projectiles,”Mech. Mat.,10,97–105 (1990).
Goldsmith, W. andLouie, D.L., “Axial Perforation of Aluminum Honeycombs by Projectiles,”Int. J. Solids Struct.,32,1017–1046 (1995).
Florence, A.L., “Interaction of Projectiles and Composite Armor Part-II,” Stanford Research Institute, AMMRG-CR-69-15 (1969).
Wilkins, M.L., “Mechanics of Penetration and Perforation,”Int. J. Eng. Sci.,16,793–807 (1978).
Cortes, R., Navarro, C., Martinez, M.A., Rodriguez, J., andGalvez, V.A., “Numerical Modeling of Normal Impact on Ceramic Composite Armors,”Int. J. Impact Eng.,12,639–651 (1992).
Mayseless, M., Goldsmith, W., Virostek, S.P., andFinnegan, S.A., “Impact on Ceramic Targets,”J. Appl. Mech.,54,373–378 (1987).
Sternberg, J., “Material Properties Determining the Resistance of Ceramics to High Velocity Penetration,”J. Appl. Phys.,65,3417–3424 (1989).
Viechnicki, D.J., Slavin, M.J., andKliman, K.I., “Development and Current Status of Armor Ceramics,”Ceramic Bull.,70,1035–1039 (1991).
Hetherington, J.G., “The Optimization of Two Component Composite Armors,”Int. J. Impact Eng.,12,409–414 (1992).
Hauver, G.E., Netherwood, P.H., Benck, R.F., and Kecskes, L.J., “Ballistic Performance of Ceramic Targets,” Proceedings of the 13th Army Symposium on Solid Mechanics, 23–34 (1993).
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Parameswaran, V., Bentley, W., Shukla, A. et al. A new approach for improving ballistic performance of composite armor. Experimental Mechanics 39, 103–110 (1999). https://doi.org/10.1007/BF02331112
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DOI: https://doi.org/10.1007/BF02331112