A PRELIMINARY EVALUATION OF SELECTED POLYMERIC COMPOSITES AS BEHIND-ARMOUR DEBRIS MITIGATORS

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Authors
  1. Szymczak, M.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
A study is presently underway to evaluate the performance of selected polymeric composites as spall liners. An evaluation methodology as well as experimental results are presented. A Velocity Merit Rating (VMR) is used to rate the composites for a given areal density of 15 kg/m square based on V50 PBL (Protection Ballistic Limit) results. It is found that E Glass fiber reinforced plates rate the poorest (VMR=1.0) whereas Spectrashield plates have the highest rating at 2.42. The materials were also tested in a contract spall liner configuration with 1/4-inch RHA steel base armour. THe 0.50-inch AP M2 projectile fire at full charge was used as the threat. Velocity measurements reveal that the residual velocity is on average 9.5% lower than that of the impact velocity. Witness pack data shows that the polymeric composites are much more efficient at mitigating behind-armour debris rather than stopping the main penetrator. The evaluation also makes it possible to demonstrate the superior performance of plates that have been designed for ballistic applications.
Keywords
Spall liners;Behind-armor debris (BAD);LAV-Recce
Report Number
DREV-TM-9501 — Technical Memorandum
Date of publication
01 Sep 1995
Number of Pages
35
DSTKIM No
96-00418
CANDIS No
153566
Format(s):
Document Image stored on Optical Disk;Hardcopy

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