Ballistic Evaluation of 6055 Aluminum

Report No. ARL-MR-0904
Authors: Denver B Gallardy
Date/Pages: September 2015; 80 pages
Abstract: The US Army Research Laboratory (ARL) evaluated the ballistic performance of aluminum alloy (AA) 6055-T651 produced by Alcoa as part of a Defense Acquisition Challenge Program. Ballistic evaluation was performed using armor-piercing and fragment-simulating projectiles to determine the V50 ballistic-protection limit (V50) for various thicknesses of material. The V50 was then compared to other ballistic-grade aluminum alloys, namely AA6061 and AA7039. The results of these experiments were used to derive the acceptance tables for AA6055 included in the updated military specification, MIL-DTL-32262A (MR).
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2015