Numerical Assessment of the Impact Behavior of CFRP strengthened RC beams using different concrete models | ||
| The Egyptian International Journal of Engineering Sciences and Technology | ||
| Article 10, Volume 37, Issue 1, March 2022, Pages 1-6 PDF (702.84 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eijest.2021.82380.1075 | ||
| Authors | ||
| Nada Elkomy1; Mohamed Emara* 2; Hilal Hassan1 | ||
| 1Structural Engineering Dept., Faculty of Engineering, Zagazig University, B.O. Box 44519, Zagazig, Sharkia, Egypt | ||
| 2Structural Engineering Department, Faculty of Engineering, Zagazig University | ||
| Abstract | ||
| In the current paper, a numerical study was carried out using the finite element (FE) approach in order to simulate the impact behavior of reinforced concrete (RC) beams strengthened using carbon fiber reinforced polymer (CFRP) sheets attached to the tensile face of the RC beam. A three-dimensional finite element model was constructed and carried out using ABAQUS/Explicit software. Different material models were employed to simulate the nonlinear behavior of concrete to better understand the response of reinforced concrete structures subjected to impact loads. The examined concrete models were; Drucker-Prager, concrete damage plasticity, and Cap/Plasticity. Numerical results were verified alongside experimental ones available in the literature. The general behavior of the finite element models in terms of time-deflection at the beam mid-span, time-load, and failure mode showed good coherence with those obtained experimentally. Moreover, results showed that the concrete damage plasticity model exhibited more realistic results, that were asymptotic to experimental results, than other models. | ||
| Keywords | ||
| Concrete; RC Beams; Finite Element; Carbon Fiber Reinforced Polymers; Impact loading | ||
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