This paper presents numerical simulation of ricochet phenomenon during high velocity oblique impact of short projectiles on steel fibre reinforced cementitious composite (SFRCC) panels. The effect of obliquity in incidence angle is numerically investigated for short projectile impact on SFRCC panels at various angles to the normal, namely, 0^°, 15^°, 30^°, 45^° and 60^°. The ogive nosed projectiles having caliber diameters as 5.56 mm and 7.62 mm are considered. A sophisticated material model namely RHT-concrete model suitable for pressure sensitive materials like concrete is adopted. Suitable modifications are also carried out pertaining to typical characteristics of the fibre reinforced cementitious composites namely, enhanced tensile strength and ductility. Results of numerical simulations are found to corroborate with experimental responses. The outcome of this study is basically considered in the determination of critical obliquity to cause ricochet from SFRCC target surface, as 52^°±2^°.

Keywords: Oblique impact, High velocity impact, Steel fibre composite, Ricochet, Numerical simulation.