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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   JANUARY 2017 , Volume 16 , Number 10 ; Page(s) 137 To 146.
 
Paper: 

ANALYSIS OF PENETRATION PROCESS IN HYBRID CERAMIC/NANOCOMPOSITE TARGETS

 
 
Author(s):  SHANAZARI HADI, LIAGHAT GHOLAMHOSSEIN*, FELI SAEID
 
* DEPARTMENT OF MECHANICAL ENGINEERING, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In this paper, an analytical model has been developed for modeling high velocity impact on ceramic/nanocomposite targets. In this model, penetration resistance of ceramic is determined based on cavity expansion analysis and variables during perforation of projectile onto ceramic are considered.
Also, the force of ceramic-composite interface is modified. Ballistic performance of the ceramic/composite target is investigated with addition and dispersion of nano particles of zirconia (ZrO2) in the matrix of back up composite. Ballistic impact tests were performed to validate the analytical predictions. These tests were performed by firing 10 mm steel flat ended projectile onto ceramic/composite target. Front layer is alumina ceramic and composite laminates of back up made of E-glass/epoxy with and without nano-zirconia particle of 5 wt%. The effect of nano-zirconia dispersion in the matrix for different failure modes is discussed. Experimental results revealed an improvement in the ballistic performance of samples with nano-zirconia particle. The analytical predictions of ballistic limit velocity and residual velocity of projectile are found to be in good agreement with the experimental results.

 
Keyword(s): PERFORATION, CERAMIC, NANOCOMPOSITE, EXPERIMENTAL, ANALYTICAL MODEL
 
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