강재 절단을 위한 장약용기의 개발과 절단 성능 평가 = Development of Charging Container for Cutting Steel Plate and Evaluation of its Cutting Performance

다국어 초록 (Multilingual Abstract)

The shaped charge is used in explosive demolition of steel frame structure, but it was often not used because it was limited to use or impossible to supply at domestic and foreign. To solve this problem, we needed a device that could generate matal jets using industrial explosive. In this study, we made a charging container, which metal jets were generated when explosives were detonated. Cutting performance tests were carried out to evaluate the effect of cutting of a charging container on a steel plate of 25mm thickness. In addition, we compared the results between the numerical simulation of penetration process and cutting performance tests and then was evaluated a cutting performance for steel plates of 35mm and 70mm thickness.

참고문헌 (Reference)

1 박훈, "강재 절단용 장약용기를 이용한 철골 교량 발파해체 시공사례" 대한화약발파공학회 36 (36): 20-33, 2018

2 Vjecislav, B., "THE EFFICIENCY OF LINEAR SHAPED CHARGES" 21 (21): 525-531, 2014

3 Lim, S., "Steady state equation of motion of a linear shaped charges liner" 44 : 10-16, 2012

4 Johnson, G.R., "Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures" 21 (21): 31-48, 1985

5 Lee, E.L., "Adiabatic expansion of high explosives detonation products" Lawrence Livermore National Laboratory, University of California 1968