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http://dx.doi.org/10.5762/KAIS.2017.18.2.697

Influence of Various Parameter for Nonlinear Finite Element Analysis of FRP-Concrete Composite Beam Using Concrete Damaged Plasticity Model  

Yoo, Seung-Woon (Department of Civil Engineering, Catholic Kwandong University)
Kang, Ga-Ram (Department of Civil Engineering, Catholic Kwandong University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.2, 2017 , pp. 697-703 More about this Journal
Abstract
This paper examines the flexure behavior of FRP-concrete composite structure that can replace conventional reinforced concrete structure types. In order to investigate the structural performance and behavioral characteristics in numerical analysis means, ABAQUS, a general purpose finite element analysis program, was utilized for nonlinear finite element analysis, and the various variables and their influences were analyzed and compared with experimental results to suggest values optimized to this composite structure. The concrete damage plasticity model and Euro code for concrete were used. In the implicit finite element analysis, the convergence was ambiguous when geometrical and material nonlinearity were large, so the explicit finite element analysis used in this study was deemed to be appropriate. From the comparison with the experiment about concrete damaged plasticity model, 20mm for the mesh size, $30^{\circ}$ for the dilation angle, $100Nmm/mm^2$ for the value of fracture energy, 0.667 for Kc value, and the consideration of damage parameter were suggested believed to be appropriate. The numerical model suggested in this study was able to imitate the ultimate load and cracking pattern very well; therefore, it is expected to be utilized in research of various new material composite structures.
Keywords
Composite beam; Concrete damaged plasticity model; Explicit finite element analysis; FRP; Nonlinear analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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