Expeditionary Light Armor Seeding Development. (Briefing Charts)
Monthly rept. no. 10, 1-31 Jan 2014
DELAWARE UNIV NEWARK
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The University of Delaware Center for Composite Materials UD-CCM is developing the next generation of lightweight hybrid ceramiccomposite armor kits for Marine Corps tactical and combat vehicles. The focus will be on simulating and modeling the performance of ceramiccomposite lightweight armor at seams and corners, and improving the armors performance in these regions. The light ceramiccomposite 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 ms. 6 DOP is the main measurement used to determine which geometry and configuration yield the best results.
- Ceramics, Refractories and Glass
- Laminates and Composite Materials