Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on the Correction of Error Induced by FTOD for Investigation of a Metal Jet Behavior

금속제트 거동 분석에서의 FTOD 오차 보정에 관한 연구

  • Joo, Jaehyun (The 5th Research and Development Institute, Agency for Defense Development) ;
  • Lee, Heonjoo (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Kim, Siwoo (The 5th Research and Development Institute, Agency for Defense Development)
  • 주재현 (국방과학연구소 제5기술연구본부) ;
  • 이헌주 (국방과학연구소 제4기술연구본부) ;
  • 김시우 (국방과학연구소 제5기술연구본부)
  • Received : 2014.02.07
  • Accepted : 2014.09.05
  • Published : 2014.10.05
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Abstract

In this study, the behavior of a shaped charge projectile's metal jet was analyzed using flash radiography. The projectile was installed horizontally to observe the behavior of jet for enough time. While the X-ray tube heads are fixed at one point, the behavior range of the jet is wide in this experimental set up, therefore the angle between the X-ray tube heads and the jet tip is changed continuously as jet moves forward. Jet particle's locations calculated from the X-ray films become different from their real positions under this situation because of the film to object distance(FTOD) and correction for error by FTOD is required. In this study, a method was devised to correct the error by FTOD and this was applied for the investigation of jet behavior of a 70 mm caliber's shaped charge.

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References

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