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Acta Armamentarii ›› 2013, Vol. 34 ›› Issue (8): 970-974.doi: 10.3969/j.issn.1000-1093.2013.08.008

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Experimental Study of Cutting PMMA Plate with Miniature Detonation Cord

LI Zhi-qiang1, WANG Zhi-hua1, LIU Xiao-ming2, ZHAO Long-mao1   

  1. 1. Shanxi Key Laboratory of Material Strength and Structure Impact, Taiyuan University of Technology,Taiyuan 030024, Shanxi, China; 2. Chengdu Aircraft Industrial(Group) Co. ,Ltd. , Aviation Industry Corporation of China, Chengdu 610092, Sichuan, China
  • Received:2012-11-06 Revised:2012-11-06 Online:2013-10-14
  • Contact: LI Zhi-qiang E-mail:lizhiqiang@ tyut. edu. Cn

Abstract:

Miniature detonation cord (MDC) with HNSII is used to cut aerial PMMA plate. 45 experiments of MDC cutting PMMA plates with three different lengths are performed at three different temperatures on a modified test apparatus. The effect of temperature, size and boundary condition on cutting results is investigated. Experimental results indicate that these factors, such as temperature, size and boundary condition of PMMA plate studied in the paper, have a slight effect on the cutting results, which can almost be neglected. Consequently, the cutting canopy experiment is directly guided by component experimental parameters and results, which provides science foundation for the design and improvement of ejection-lifesaving-system.

Key words: explosion mechanics, ejection-lifesaving-system, MDC, explosion cutting, PMMA

CLC Number: