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Beginning during the Cold War, many AFVs have spall liners inside of the armour, designed to protect crew and equipment inside from fragmentation (spalling) released from the impact of enemy shells, especially high-explosive squash head warheads. Spall liners are made of aramids (Kevlar, Twaron), UHMWPE (Dyneema, Spectra Shield), or similar ...
Spall are fragments of a material that are broken off a larger solid body. It can be produced by a variety of mechanisms, including as a result of projectile impact, corrosion, weathering, cavitation, or excessive rolling pressure (as in a ball bearing). Spalling and spallation both describe the process of surface failure in which spall is shed.
In excess new nano-ceramic armour overlaying a vehicle's base armour, which is backed up by a spall-liner, can achieve a weight reduction of more than 40% to meet the Level 3 of STANAG 4569. [4] Furthermore, AMAP's glue and lining components work efficiently even at high temperatures (like 80 °C (176 °F)). [4]
The M113A3 was upgraded with internal spall liners and armored fuel tanks. In comparison, a modern APC such as the Stryker has all-around 7.62 mm armor-piercing protection, plus 14.5 mm protection on the front, sides, and rear, and a protection against antipersonnel mines.
The spall liner stops most of the fragments of the armour and projectile brought about by hull penetration. To further enhance crew protection, the seats are decoupled from the floor, this preventing the shock of a mine-detonation being directly transmitted to the crew.
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This armour kit is intended to provide increased protection against improvised explosive devices, explosively formed penetrators, and 30 mm caliber armour-piercing rounds. [10] All CV90s are fitted with a spall liner, which covers the interior spaces and provides protection for the troops inside against shrapnel and anti-personnel artillery ...
LONDON (Reuters) -The dollar fell broadly on Monday, while European stocks jumped, after an official for the incoming U.S. administration said President-elect Donald Trump would stop short of ...