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Dynamic Characteristics Stiffened Blast-wall Structures Subjected to Blast Loading Considering High Strain-rate Effects
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 Title & Authors
Dynamic Characteristics Stiffened Blast-wall Structures Subjected to Blast Loading Considering High Strain-rate Effects
Kim, Gyu Dong; Noh, Myung Hyun; Lee, Jae Yik; Lee, Sang Youl;
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A finite element dynamic simulation is performed to gain an insight about the stiffened blast wall structures subjected to blast loading. The simulation was verified using qualitative and quantitative comparisons for different materials. Based on in-depth examination of blast simulation recordings, dynamic behaviors occurred in the blast wall against the explosion are determined. Subsequent simulation results present that the blast wall made of the high performance steel performs much better in the shock absorption. In this paper, the existing finite element shock analysis using the LS-DYNA program is further extended to study the dynamic response of the stiffened blast wall made of the high-performance steel considering high strain-rate effects. The numerical results for various parameters were verified by comparing different material models with dynamic effects occurred in the stiffened blast wall from the explosive simulation.
Stiffened blast wall;High strain-rate effects;High performance steel;Explosive simulation;
 Cited by
자유공중폭발에 의한 폭발압력과 충격량에 대한 수치해석,신진원;이경구;

한국강구조학회 논문집, 2016. vol.28. 4, pp.271-280 crossref(new window)
Health and Safety Executive (2006) Pulse pressure testing of 1/4 scale blast wall panels with connection (Phase II), HSE Research Report 404, London.

김상진, 손정민, 이종찬, 리춘보, 성동진, 백점기(2014) 폭발 하중을 받는 보강된 방폭벽의 동적 구조 응답특성에 관한 연구, 대한조선학회지, 대한조선학회, 제51권, 제5호, pp. 380-387. (Kim, S.J., Sohn, J.M., Lee, J.C., Li C.B., Seong, D.J., and Paik, J.K. (2014) Dynamic Structural Response Characteristics of Stiffened Blast Wall under Explosion Loads, Journal of the Society of Naval Architects of Korea, SNAK, Vol. 51, No. 5, pp. 380-387 (in Korean).)

김기동, 고만기, 김동성, 주재웅, 장대영 (2012) 차량 속도-시간 이력을 이용한 고규격 종방향 연성 배리어 설계, 한국방재학회지, 한국방재학회, 제12권, 제3호, pp.157-167 (Kim, K.D., Ko, M.G., Kim, D.S., Joo, J.W., and Jang, D.Y. (2012) Design of High-Performance Longitudinal Flexible Barrier Using Vehicle Velocity-time History, Journal of Korean Society of Hazard Mitigation, KSHAM, Vol. 12, No. 3, pp. 157-167 (in Korean).)

이경구, 이문창(2015) 강재압축재의 방폭성능에 대한 중력하중효과의 해석적 연구, 한국강구조학회논문집, 한국강구조학회, 제27권, 제3호, pp.273-280. (Lee, K.K. and Lee, M.C. (2015) Analytical Study on Effects of Gravity Load on Blast Resistance of Steel Compressive Members, Journal of Korean Society of Steel Construction, KSSC, Vol.27, No.3, pp.273-280 (in Korean).)

김봉주, 김병훈, 손정민, 백점기, 서정관(2012) 해양플랜트 설비 Corrugated Blast Wall의 폭발 충격응답 인자 특성에 관한 파라메트릭 연구, 한국해안. 해양공학회지, 한국해안.해양공학회, 제26권, 제3호, pp.46-54. (Kim, B.J., Kim, B.H., Sohn, J.M., Paik, J.K., and Seo, J.K. (2012) Parametric Study on Explosion Impact Response Characteristics of Offshore Installation's Corrugated Blast Wall, Journal of Ocean Engineering and Technology, KSCOE, Vol. 3, No. 26, pp.46-54 (in Korean).)

노명현, 박규식, 이재익(2015) 고에너지흡수 신소재 적용 해양플랜트 파형 방폭벽의 폭발 저항 성능, 한국복합신소재구조학회논문집, 한국복합신소재구조학회, 제6호, 제1호, pp.38-44. (Noh, M.H., Park K.S., and Lee J.Y. (2015) Explosion Resistance Performance of Corrugated Blast Walls for Offshore Structures made of High Energy Absorbing Materials, Journal of the Korean Society for Advanced Composite Structures, Vol.6, No.1, pp.38-44 (in Korean).)

이정한, 오재용, 박상후, 남기중, 류광현, 신석훈, 신보성(2010) 변형률 속도 효과를 고려한 355nm UV 레이저 다중 펄스 미세가공의 전산해석에 관한 연구, 한국정밀공학회지, 한국정밀학회, 제27권, 제10호, pp.29-33. (Lee, J.H., Oh, J.Y., Park, S.H., Nam, G.J., Ryu, G.H., Shin, S.H., and Shin, B.S. (2010) A Study on the Computational Analysis of 355mm UV Laser Multiplepulsed Micro Machining Considering the Strain Rate Effect, Journal of the Korean Society of Precision Engineering, KSPE, Vol. 27, No.10, pp. 29-33 (in Korean).)

Cowper, G. and Symonds, P. (1957) Strain Hardening and Strain Rate Effects in the Loading of Cantilever Beams, Brown Univ. Applied Mathematics Report, Report No. 28.

LSTC (2007). LS-DYNA keyword user's manual (version 971).

Hallquist, J.O. (2001) LS-DYNA Theoretical Manual, Livermore Software Technology Corporation, Livermore, CA.

Choung, J.M., Nam, W.S., and Lee, J.I. (2013) Dynamic Hardening Behaviors of Various Marine structural steels considering dependencies on strain rate and temperature, Journal of the Marine Structures, Vol.32, pp.49-67. crossref(new window)

최광호, 김용구 (2002) 건축물의 방폭 설계시 폭발하중의 모델링 및 적용 기법, 한국강구조학회지, 한국강구조학회, 제14권, 제2호, pp.63-69. (Choi, K.H. and Kim, Y.K. (2002) Modeling of Blaster Load and its Application in Blaster Resistance Design, Journal of the Korean Society of Steel Construction, KSSC, Vol. 14, No.2, pp.63-69 (in Korean).)