고폭탄물의 근접폭발이 폭발압력과 충격량에 미치는 효과 = Effects of Near-Field Explosion of High Explosives on Blast Overpressures and Impulses

다국어 초록 (Multilingual Abstract)

The effects of near-field detonation of high explosives in free air are characterized by blast overpressure and impulses. The typical practice for blast resistant design of structures in the United States, United Kingdom and elsewhere involves the use of the US government-published document of UFC 3-340-02. The UFC 3-340-02 approach has been developed for far-field detonations based on a number of test results but not been validated for near-field detonations due to a lack of the test data. Further, the near-field effects including the rarefaction wave, afterburning and expanding detonation products, fireball have not been addressed in the existing design approaches including UFC 3-340-02. Numerical studies are therefore performed to examine the effect of near-field detonations on blast overpressure and impulse. Recommendations for determining blast loading in the near field are provided.

국문 초록 (Abstract)

고폭탄물의 공중 근접폭발의 효과는 폭발압력 및 충격량에 의하여 특징지어진다. 미국, 영국 등 전세계적으로 구조물의 방폭설계에 대한 일반적인 연구는 미국방부 문서인 UFC 3-340-02를 사용하여 수행된다. UFC 3-340-02는 수많은 실험데이터에 근거하여 원거리 폭발을 대상을 개발되었지만 실험데이터의 부족으로 근접폭발에 대해서는 검증되지 않았다. 더욱이 저밀도파, 재연소, 팽창하는 폭발물, 파이어볼 등의 근접폭발효과가 UFC 3-340-02를 포함한 현재 방폭설계에서 반영되지 않았다. 따라서 폭발압력과 충격량에 대한 근접폭발효과를 알아보기 위하여 수치해석이 수행되었다. 근접거리에서의 폭발하중을 결정하기 위한 주요사항들을 기술하였다.

참고문헌 (Reference)

• 1 DoD, "Unified Facilities Criteria (UFC): Design of Buildings to Resist Progressive Collapse" Departments of Defense 2013
• 2 Norris, C. H, "Structural Design for Dynamic Loads" McGraw-Hill 1959
• 3 Dobratz, B. M, "LLNL Explosive Handbook, Properties of chemical explosives and explosive simulants" Lawrence Livermore National Laboratory 1985
• 4 Biggs, J. M, "Introduction to Structural Dynamics" McGraw-Hill 1964
• 5 Souers, P. C, "Detonation energies from the cylinder test and CHEETAH V3. 0" 26 (26): 180-190, 2001
• 6 Hyde, D. W, "ConWep: Conventional Weapons Effects (Application of TM 5-855-1)" US Army Corps of Enigneers, Waterways Experiment Station 1992
• 7 Cullis, I. G, "Blast structure interaction and the role of secondary combustion" 2007
• 8 Kingery, C. N, "Airblast parameters from TNT spherical air burst and hemispherical surface burst" US Army Ballastic Research Laboratory, Aberdeen Proving Ground, MD 1984
• 9 Shin, J, "Air blast effects on civil structures" University at Buffalo 2014
• 10 Donahue, L. K, "Afterburning of TNT detonation in air" Dalhousie University 2008
• 11 McNesby, K. L, "Afterburn ignition delay and shock augmentation in fuel rich solid explosives" 35 (35): 57-65, 2010
• 12 ANSYS, "AUTODYN User’s Manual Version 15.0" ANSYS, Inc 2013