Multi-physics blast analysis of reinforced high strength concrete

Title
Multi-physics blast analysis of reinforced high strength concrete
Author
윤성환
Keywords
multi-physics; blast analysis; high strength concrete; strain rate-dependent; tensile fracture energy
Issue Date
2013-05
Publisher
Korean SOC of Civil Engineer
Citation
KSCE Journal of Civil Engineering, May 2013, 17(4), P.777-788
Abstract
The blast damage behavior of reinforcing bars embedded in a High Strength Concrete (HSC) exposed to blast loading is investigated. In order to properly evaluate the HSC slab subject to blast loading, an explicit analysis program was used in this work. The multi-physics method of coupled Eulerian-Lagrangian solver is used to improve the efficiency and reliability of numerical simulation. To enhance the accuracy of the simulation results, the equation of state, strength and failure models of materials are implemented in AUTODYN. Specifically, the implemented multi-limit strength and failure surface models included strain rate effect and tensile fracture energy for HSC. The realized and idealized 3D quarter-symmetric models are used to obtain a reasonable computational running time, and the numerical simulation of the spalling and scabbing of an HSC slab under blast loading is presented. To validate the implemented material models and analysis method, a comparison is made with reported experimental results, and the simulation results are found to be in good agreement with the experimental results.
URI
https://link.springer.com/article/10.1007%2Fs12205-013-0093-7
ISSN
1226-7988
DOI
10.1007/s12205-013-0093-7
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE(산업과학연구소) > Articles
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