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J. KIMS Technol > Volume 14(4); 2011 > Article
Journal of the Korea Institute of Military Science and Technology 2011;14(4):630-638.
DOI: https://doi.org/10.9766/KIMST.2011.14.4.630   
The Development of 20 mm Test Barrel with Replaceable Powder Chamber Type
Jin-Sung Lee, Young-Shin Lee
1
2Chungnam National University
약실교환방식의 20 mm 시험용 총열 개발
이진성, 이영신
1국방과학연구소
2충남대학교
Abstract
A new smooth bore test barrel was developed to be used in sensitivity assessment test for explosives and fragment impact test. The bore diameter of the barrel is 20 mm, and the powder chamber is designed to be replaceable with the 12.7 mm, 20 mm and 30 mm type chamber. The test results showed the wide range of fragment velocity from 400 to 2000 m/s, included the fragment velocity requirement of the fragment impact test(alternate procedure #1) in MIL-STD-2105B. The stability of the bullet trajectory was checked by test shots and the structural safety of the system has been confirmed through the stress analysis and the interior ballistics analysis of the barrel.
Key Words: Sensitivity Assessment Test, Fragment Impact Test, Barrel, Replaceable Powder Chamber
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