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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.12 No.3
- 발행연도
- 2018.3
- 수록면
- 375 - 396 (22page)
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This paper investigates the effect of concrete degradation due to alkali-silica reactivity (ASR) and its effect on the performance of vertical concrete casks in the case of a hypothetical tip-over event. ASR is one of the major problems in certain concrete structures exposed to high relative humidity and temperature. Using the first order kinetic model, the mechanical and environmental effects of degradation are modeled for a dry-cask storage structure under the conditions that ASR is completely extended. Following the degradation, a tip-over impact simulation was performed and compared with that of an intact cask in terms of failure modes, damage patterns, stresses, and accelerations. It was seen that concrete crushing and shear banding are major failure modes in the cask with intact concrete, but in the case of the ASR affected cask, the concrete is fully damaged and a longitudinal crack which separates the cask into two parts propagates through the outerpack.
목차
Abstract
1. Introduction
2. Finite Element Modeling
3. Results and Discussion
4. Conclusions
References
참고문헌 (59)
참고문헌 신청
ACI 318-08 (2008). Building code requirements for structural concrete and commentary. American Concrete Institute.
Bangert, F., Kuhl, D., & Meschke, G. (2004). Chemo-hygromechanical modelling and numerical simulation of concrete deterioration caused by alkali-silica reaction. International Journal for Numerical and Analytical Methods in Geomechanics, 28(78), 689?714.
Belytschko, T., & Bindeman, L. P. (1993). Assumed strain stabilization of the eight node hexahedral element. Computer Methods in Applied Mechanics and Engineering, 105, 225?260.
Bermejo, M., Goicolea, J. M., Felipe Gabaldon, F., & Santos, A. (2011). Impact and explosive loads on concrete buildings using shell and beam type elements. In COMPDYN 2011, 3rd ECCOMAS thematic conference on computational methods in structural dynamics and earthquake engineering, Greece, May 25?28.
Borrvall, T., & Riedel, W. (2011). The RHT concrete model in LS-DYNA. In Proceedings of the 8th European LS-DYNA users conference, Strasbourg.
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UCI(KEPA) : I410-ECN-0101-2018-532-001900009