Title of article :
Experimental and numerical study on the effect of aluminum foil wrapping on penetration resistance of ceramic tiles
Author/Authors :
Mazaheri Hashem نويسنده Assistant Professor in Mechanical Engineering Department, Bu-Ali Sina University, Hamedan, Iran. , Naghdabadi Reza نويسنده Professor in the Department of Mechanical Engineering at Sharif University of Technology, Iran. , Arghavani Jamal نويسنده Assistant Professor at Mechanical Engineering Department at SUT.
Abstract :
In this work, energy absorption of ceramic tiles wrapped by aluminum foil
on its impact face is experimentally and numerically studied. Penetration tests as well as
numerical simulations are employed to obtain Ballistic Limit Velocity (BLV) of the tiles.
Experimental and numerical results yield BLV of bare tiles as 145 2 and 141.5 m/s, respectively.
For the wrapped tiles, these values are increased to 168 2 and 162 m/s, respectively. Therefore,
13% increase in BLV of the ceramic tiles is obtained by just 2.4% increase in its weight. Moreover,
it is shown that energy absorption of the wrapped tiles is at least 11% greater than that of the
bare ones. Based on the results, the increase in BLV and energy absorption is due to the increase
in the fracture conoid angle which postpones
crack propagation to the back plate.
Journal title :
Astroparticle Physics
