PSI - Issue 54

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ

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Procedia Structural Integrity 54 (2024) 601–608

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers Abstract In this study, two finite element (FE) models were created to simulate a four-point load bending test. The primary objective of this investigation is to assess the flexural performance of concrete prisms employing fiber-reinforced polymers (FRP) in two distinct configurations: grooved within the concrete prism and externally bonded to the prism's substrate. The study aims to evaluate the effectiveness and feasibility of grooving FRP materials within concrete substrates to achieve better bonding performance and superior flexural strength. The modeling process was conducted using the commercial software ABAQUS. Accordingly, two carbon-FRP (CFRP) concrete prism models underwent FE analysis to evaluate their performance. The FE results of the prisms showed that the predictable ultimate load for the prism externally grooved with CFRP laminate exhibited a notable 6% increase in comparison to the prism with CFRP externally bonded. While the percentage increase is not significant, it illustrates the potential of the grooved system to enhance the load-carrying capacity. The limited percentage increase is attributed to the modeling approach utilizing low-strength concrete. This suggests that the crushing failure mode may have approached closely to the debonding failure mode. © 2023 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers Ahmed Selim a , Shahed Alhomsi a , Haider Hasan a , Jamal A. Abdalla b , Rami A. Hawileh b, * a Graduate student, Department of Civil Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates * Corresponding author, email: rhaweeleh@aus.edu b Professor, Department of Civil Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates Abstract In this study, two finite element (FE) models were created to simulate a four-point load bending test. The primary objective of this investigation is to assess the flexural performance of concrete prisms employing fiber-reinforced polymers (FRP) in two distinct configurations: grooved within the concrete prism and externally bonded to the prism's substrate. The study aims to evaluate the effectiveness and feasibility of grooving FRP materials within concrete substrates to achieve better bonding performance and superior flexural strength. The modeling process was conducted using the commercial software ABAQUS. Accordingly, two carbon-FRP (CFRP) concrete prism models underwent FE analysis to evaluate their performance. The FE results of the prisms showed that the predictable ultimate load for the prism externally grooved with CFRP laminate exhibited a notable 6% increase in comparison to the prism with CFRP externally bonded. While the percentage increase is not significant, it illustrates the potential of the grooved system to enhance the load-carrying capacity. The limited percentage increase is attributed to the modeling approach utilizing low-strength concrete. This suggests that the crushing failure mode may have approached closely to the debonding failure mode. © 2023 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers Ahmed Selim a , Shahed Alhomsi a , Haider Hasan a , Jamal A. Abdalla b , Rami A. Hawileh b, * a Graduate student, Department of Civil Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates * Corresponding author, email: rhaweeleh@aus.edu b Professor, Department of Civil Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates Keywords: Finite element modeling (FEM); Fiber reinforced polymers (FRP); Carbon fiber reinforced polymers (CFRP). Keywords: Finite element modeling (FEM); Fiber reinforced polymers (FRP); Carbon fiber reinforced polymers (CFRP). International Conference on Structural Integrity 2023 (ICSI 2023) Finite Element Modeling of Concrete Prisms Externally Strengthened with Near Surface Mounted FRP System International Conference on Structural Integrity 2023 (ICSI 2023) Finite Element Modeling of Concrete Prisms Externally Strengthened with Near Surface Mounted FRP System

* Corresponding author. Tel.: +971-6-515-2496; E-mail address: rhaweeleh@aus.edu * Corresponding author. Tel.: +971-6-515-2496; E-mail address: rhaweeleh@aus.edu

2452-3216 © 2023 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers 2452-3216 © 2023 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSI 2023 organizers 10.1016/j.prostr.2024.01.124