Multi-Physics Blast Analysis for Steel-Plated and GFRP-Plated Concrete Panels

Title
Multi-Physics Blast Analysis for Steel-Plated and GFRP-Plated Concrete Panels
Author
윤성환
Keywords
blast analysis; GFRP; multi-physic; strain rate-dependent; transversely isotropic
Issue Date
2013-05
Publisher
SAGE Publications
Citation
Advances in Structural Engineering,2013, 16(3), P.529-548
Abstract
The blast damage behaviors of steel-plated and glass fiber reinforced polymer (GFRP)-plated concrete panels exposed to explosive are investigated. In order to improve efficiency and accuracy of numerical analysis, the multi-physics method of coupled Eulerian-Lagrangian discretization is used. To enhance the reliability of the simulation results, the equation of state, strength, and failure model of materials are implemented in an explicit program, AUTODYN. In particular, the implemented formulation includes the strain rate-dependent plasticity for concrete and a transversely isotropic elastic constitutive model for GFRP. The retrofitted concrete panels are compared to non-retrofitted concrete panels, and the deflection and deflection ratio are reduced by steel and GFRP plates. To validate the implemented material models and analysis method, a comparison is made with the reported experimental results. The maximum deflection of the panel from the numerical analysis agrees closely with the results of the experiments. Finally, a discussion of the numerical results with respect to code criteria and energy absorption capacity is presented.
URI
http://eds.a.ebscohost.com/eds/detail/detail?vid=0&sid=4dec2304-d71e-417b-ad53-8e81a0f042d3%40sessionmgr4010&bdata=Jmxhbmc9a28mc2l0ZT1lZHMtbGl2ZQ%3d%3d#db=a9h&AN=87580271http://hdl.handle.net/20.500.11754/45933
ISSN
1369-4332
DOI
10.1260/1369-4332.16.3.529
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE(산업과학연구소) > Articles
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