금속제트 거동 분석에서의 FTOD 오차 보정에 관한 연구 = A Study on the Correction of Error Induced by FTOD for Investigation of a Metal Jet Behavior

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 Scandiflash, "X-Ray Systems for Flash Radiography" 1999

2 US Army Aberceen Proving Ground, "US Army Test and Evaluation Command Test Operations Procedure-Flash Radiography in Ballistic Testing" 1978

3 J. H. Joo., "Protection Against Shaped Charge by Reactive Armors Containing Energetic and Inert Materials" 1433-1442, 2013

4 W. P. Walters., "Fundamentals of Shaped Charges" John Wiley & Sons, Inc 329-357, 1989

5 John C. Lanoue., "Flash X-Ray System, Techniques and Applications" Sandia National Laboratories 1993

6 M. Held, "Determination of the Material Quality of Copper Shaped Charge Liners" 10 : 125-128, 1985

7 J. H. Joo., "An Experimental Analysis(I)for Characteristics of Metal Jet of Some Threats Against Electric Armor" Agency for Defense Development 2013