Expeditionary Light Armor Seeding Development. (Briefing Charts)
Abstract
The University of Delaware Center for Composite Materials (UD-CCM) is developing the next generation of lightweight hybrid ceramic/composite armor kits for Marine Corps tactical and combat vehicles. The focus will be on simulating and modeling the performance of ceramic/composite lightweight armor at seams and corners, and improving the armor's performance in these regions. The light ceramic/composite armor is comprised of composite backings, adhesives, ceramics and covers. This is an expansion of previous research on performance-weight-cost evaluations and center strike experiments and simulations done on these materials. The effort of this modeling and simulation are to down select for appropriate geometries to improve the performance of seams and corners. The tiles will be restricted to the sintered ceramics (SiC) due to the ability to fabricate SiC into complex geometries. Model ballistic experiments will validate the modeling done in simulation. During this period: 1) -Half-symmetric model is used in AutoDyn to simulate Depth of Penetration (DOP) experiments on SIC tile with and without a gap supported by solid Aluminum (AI5083). 2) Impacts by .30cal AP M2 projectile and are modeled using SPH elements in AutoDyn. 3) Center strike model validation runs with SiC tiles are conducted based on the DOP experiments described in reference - ARL-TR-2219, 2000. 4) Tile gap is found to increase the DOP as compared to baseline center impact. 5) Simulations were run on gap sizes 0.508 (20 mil) and 1.061 mm (40 mil) at the standard muzzle speed of 850 m/s. 6) DOP is the main measurement used to determine which geometry and configuration yield the best results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2014
- Accession Number
- ADA625809
Entities
People
- Bazle Z. Haque
- Nicole A. Cicchetti
- Shridhar Yarlagadda
Organizations
- University of Delaware