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Descripción
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| The use of near-surface mounted FRP reinforcement in reinforced concrete structures has seen a considerable increase in recent years as a trengthening method. Beam pull-out tests for near-surface reinforcement allow obtaining the local bond?slip behavior of a bonded joint. The current paper deals with the three-dimensional modeling of this kind of test with the purpose of suitably characterizing the mechanics of the bond between FRP rods and concrete. Different alternatives to represent the FRP bar ? concrete interface have been evaluated. Furthermore, to do this modeling, a PID controller has also been designed to conduct the numerical tests correctly in order to properly capture the softening branch of the load-slip behavior. The numerical FE simulations were compared with previously published experimental measurements. Load-slip predictions compare well with the corresponding experimental data. The proposed model is also able to predict the failure mode at the FRP-concrete interface. Some parametric studies have also been carried out. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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Composites: Part B Engineering |
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ISSN
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1359-8368 |
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Factor de impacto JCR
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2,602 |
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Información de impacto
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Volumen
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54 |
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DOI
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http://dx.doi.org/10.1016/j.compositesb.2013.05.00 |
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Número de revista
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Desde la página
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112 |
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Hasta la página
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124 |
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Mes
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SIN MES |
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Ranking
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Q1 |