| Title |
Blast Analysis and Damage Evaluation for Reinforced Concrete Building Structures |
| Authors |
박양흠(Park, Yang Heum) ; 윤성환(Yun, Sung-Hwan) ; 장일영(Jang, Il Young) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.4.0331 |
| Keywords |
폭발하중; 폭발해석; 폭발손상평가; 철근 콘크리트 빌딩 구조물; Euler-Lagrange 커플링 기법 Blast load; Blast analysis; Blast damage evaluation; RC building structures; Euler?Lagrange coupling method |
| Abstract |
The blast damage behavior of reinforced concrete (RC) structures exposed to unexpected extreme loading was investigated. To enhance the accuracy of numerical simulation for blast loading on RC structures with seven blast points, the calculation of blast loads using the Euler?flux-corrected-transport method, the proposed Euler?Lagrange coupling method for fluid?structure interaction, and the concrete dynamic damage constitutive model including the strain rate-dependent strength and failure models was implemented in the
ANSYS-AUTODYN solver. In the analysis results, in the case of 20 kg TNT, only the slab member at three blast points showed moderate and light damage. In the case of 100 kg TNT, the slab and girder members at three blast points showed moderate damage,
while the slab member at two blast points showed severe damage. |