Abstract—In mechanics, an impact is a high force or shock applied over a short period when two or more bodies collide. Such a force or acceleration usually has a greater effect than a lower force applied over a proportionally longer period of time. The effect depends critically on the relative velocity of the bodies to one another. Structural failure due to impact is a common but complex phenomenon. In earlier days the impact problems were primarily confined to the military. As the civilian technology has grown in sophistication, more studies are being carried out to understand the behavior of materials subjected to short duration of loading. The field of impact dynamics is of interest to engineers concerned with design of light weight body amour, safety of nuclearreactor containment vessels subjected to missile or aircraft impact, protection of spacecraft from meteoroid impact, safe demolition of pre stressed concrete structures and transportation safety of the hazardous materials. In the present work, simulation is performed by impacting aluminum plates of three different thicknesses viz. 0.81 mm, 1.51 mm and 2.05 mm by three different nose projectiles, i.e., blunt, conical and hemispherical with varying kinetic energy in Finite Element Code. Problem is modeled using ANSYS/Explicit Axi-symmetric Model.

Index Terms—Impact, Projectile velocity, Impact velocity, Residual velocity, Velocity drop

Cite: Sivaiah A, Nageshwar Reddy V, and Syed Altaf Hussain, "Simulation Studies on the Effect of Projectile Nose Shape Impacting on Aluminum Plates," International Journal of Mechanical Engineering and Robotics Research, Vol. 3, No. 1, pp. 119-126, January 2014.