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Experimentation using Hot and Cold Steel Plate Targets Against 7.62mm Ammunition.

N. J. LYNCH, P. PITCHER, D. PATTEN, A. COOK, C. GIRDLESTONE

Abstract


Recent background research highlighted that data was limited into the characterisation of low carbon steels at hot and cold temperatures against 7.62mm Ball and Armour Piercing (AP) ammunition. However, available data indicates that the strength of steel plates increases with decreasing temperature. This paper looks further at this phenomenon with Hot and Cold targets that were environmentally conditioned at the specific temperature for 24 hours, prior to ballistic evaluation. The steels used were DH36, S275 and S355 and the target temperatures were Hot (>+50°C), Ambient (~12°C) and Cold (<-20°C). The target plates were 10mm thick. All shots were fired horizontally with a 12m stand-off from the end of a remotely operated gun barrel to the front face of the target plate. The targets were placed inside an ISO container (to prevent wind chill, etc. on the conditioned plate firings) and bounded at the rear with 1 tonne sandbags backed with a large Pendine block wall.


DOI
10.12783/ballistics2017/17027

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