Published Papers
     Search Papers (Springer,
   After 2008)
     Search Papers (Dbpia,
   Until 2007)
     Search Papers (JMST
   own data base)
       - Classification By Year   
       - Classification By Topic
     Special Issues
   
           
   
 
 
Subject Keyword Abstract Author
 
 
Characterization of the ballistic limit curve for hypervelocity impact of sphere onto single plate

Minhyung Lee* and Young Jun Cho
The Journal of Mechanical Science and Technology, vol. 25, no. 9, pp.2457-2463, 2011

Abstract : A ballistic limit curve for hypervelocity impact of spherical aluminum projectiles on a single wall aluminum plate is examined using the smooth particle hydrodynamics (SPH) method. A brief description is provided about a new in-house code with an emphasis on the axi-symmetric coordinate scheme. The Benchmark Taylor bar impact test was first demonstrated as a validation of the code. Then a series of hypervelocity impact simulations was performed in axi-symmetric coordinate. The impact velocity ranged from 2 km/s to 10 km/s. The plate thickness varied from 2 mm to 8 mm. The ballistic limit results calculated are compared with predictions from empirical correlations, and the results are shown to fall within the envelope of the empirical correlation. A simple theory is developed to analyze the characteristics of ballistic limit curves. The theory provides a good insight on the hypervelocity plate impact event and is valuable for design concerns.

Keyword : Ballistic limit curve; SPH; Hypervelocity impact

 
 
 
 
 
JMST Editorial Office: #702 KSTC New Bldg, 22 7-gil, Teheran-ro, Gangnam-gu, Seoul 06130, Korea
TEL: +82-2-501-3605, E-mail: editorial@j-mst.org
JMST Production Office: #702 KSTC New Bldg, 22 7-gil, Teheran-ro, Gangnam-gu, Seoul 06130, Korea
TEL: +82-2-501-6056, FAX: +82-2-501-3649, E-mail: editorial@j-mst.org