Accession Number:

ADA571924

Title:

Battle Damage Modeling

Descriptive Note:

Educational note no. 10

Corporate Author:

AIR FORCE FLIGHT TEST CENTER POMEZIA (ITALY) DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

2010-05-01

Pagination or Media Count:

17.0

Abstract:

Military structures are susceptible to high velocity impact due to both ballistic and blast loads. During a high velocity impact a shock wave much greater than static collapse resistance propagates through the material. Metallic structures usually undergo large plastic deformations absorbing impact energy before reaching equilibrium. Due to their high specific properties, also fiber-reinforced polymers are being considered for energy absorption applications in military armors. A deep insight into the relationship between projectileexplosion loads, composite architecture fracture behavior will offer the possibility to understand battle damage mechanics. This work deals with 3D numerical simulations of damage on hybrid composite ceramicmetal and glasscarbon fiber plates subjected to ballistic and blast loads. The simulation results are presented and compared with the experimental data, showing good agreement in terms of dynamic deflection, damage morphology and residual deformation.

Subject Categories:

  • Laminates and Composite Materials
  • Operations Research
  • Explosions
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE