Oblique Impact Study in Thin Steel Armour Plate
AbstractResults of a study on the perfom1ance of 10 rnrn low alloy, rolled-homogeneous armour (RHA)plate when impacted by 20 mm diameter steel ogive-shaped projectile at 15,30 and 45° angles ofattack in the subordnance velocity regime are presented. Experimental results show that 10 rnrn steelplate provides full protection at 45° obliquity up to a striking velocity of 530 rn/s. At low velocity(V < 350 rn/s), the plate provides protection at 30° obliquity, but fails to provide protection at an angleof attack of 15 0, even at low velocity ( V = 300 rn/s ).It is also observed that nom1al component of the strikiug velocity of the projectile is the main cause of plate perforation.
Corbet, G.G..; Reid, S.R.; and Johnson, W. Impact loading of plates and shells by free -fl ying
projectiles: A review. Int. J. Impact. Engg., 1996, 18, (2), 141 -230.
Rech, R.F. & Ipson, T.W., BallIstic perforation dynamics. .1: Appl. Mech., September 1963.
Awerbuch, J.; & Mechanics, A. Approach to projectile penetration Israel J. Tech., 1970; 8 ,
Awerbuch , J., & Bodner, S.R. An investigation of oblique perforation of metallic plates by
projectiles. Experimental Mechanics, 1977, 17, 147 -53.
Goldsmith, W. & Finnegan, S.A. Normal and oblique impact of cylindro-conical and cylindrical projectiles on metallic plates, Int. I. Impact Engg., 1986,4,83.
Sundararajan, G. The energy absorbed during the oblique impact of a hardball against ductile target material. Int. .1: Impact Engg., 1980,9 (3) 343-58.
Dikshit, S.N. & Sundararajan, G. Effect of clamping rigidity of the annour on ballistic
performance.Dsj Sci.J:, 1992,42 (2),117-20.
Dikshit, S.N. & Sundararajan, G. The penetration of thick steel plates by ogive-shaped projectiles-experiment and analysis. Int. J. Impact Engg., 1992,12, (3), 373-408.
Hessmann, W. & Wilbeck, J.S. Review of hyper velocity penetration theories. Int. J Impact Engg,. 1987;5 (1-4),307-22.
Backman, M.A. & Goldsmith, W. The mechanics of penetration of projectiles into
targets. Int. J. Engg. Sci., 1978,16, 1-99.
Dikshit, S.N. Studies on the ballistic performance of thick armour steel pl1ates, Banaras Hindu
University, Varanasi, 1993. PhD Thesis (Unpublished).
Where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India