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Finite element modelling of concrete cover separation failure in FRP plated RC beams
Affiliation:1. School of Mechanical and Manufacturing Engineering, Queen''s University Belfast, Ashby Building, Belfast BT9 5AH, UK;2. Institute for Infrastructure and Environment, School of Engineering and Electronics, Edinburgh University, The King''s Buildings, Edinburgh EH9 3JN, UK;3. School of Engineering and the Built Environment, Wolverhampton University, Wolverhampton WV1 1SB, UK;1. Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, BP 89 Cité Ben M’hidi, 22000 Sidi Bel-Abbes, Algeria;2. Department of Science and Technology, University Centre of Tamanrasset, BP 10034 Sersouf, Tamanrasset, Algeria;1. Department of Civil Engineering, Korea Maritime and Ocean University, 609 Engineering Building-II, Busan 49112, Republic of Korea;2. MODJESKI and MASTERS, Inc., 100 Sterling Parkway, Suite 302, Mechanicsburg, PA 17050, USA;1. Faculty of Science, Engineering and Technology, Swinburne University of Technology, PO Box 218, Victoria 3122, Australia;2. University of Baghdad, Faculty of Engineering, Civil Engineering Department, Baghdad, Iraq
Abstract:The technique of bonding fibre reinforced polymer (FRP) composites to the tension face or sides of reinforced concrete (RC) beams has become very popular for strengthening or retrofitting purposes. A distinct characteristic of such strengthened RC beams is that they very often fail due to various premature debonding failures. This paper presents a fracture mechanics based finite element analysis of debonding failures. Numerical results for an experimental beam are presented. Initial findings show that the method can successfully simulate the concrete cover separation failure mode in FRP strengthened RC beams.
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