Explicit finite element modeling of static crack propagation in reinforced concrete |
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Authors: | Rena C Yu Gonzalo Ruiz |
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Affiliation: | (1) ETSI de Caminos, C. y P., Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain |
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Abstract: | We propose a methodology to model complex fracture processes in reinforced concrete beams subjected to static loading. The discrete cohesive approach, accompanied by an insertion algorithm, is adopted and a modified dynamic relaxation method is chosen as an alternative solver. The concrete matrix and steel re-bars are modeled explicitly; the connection in between is represented by means of interface elements. Such elements allow for slip of re-bars and transmit forces to the matrix that may generate secondary cracking around the reinforcement. The methodology is validated against three-point bending tests on lightly reinforced concrete (LRC) beams. |
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Keywords: | Static fracture of structural concrete Cohesive models Interface deterioration Dynamic relaxation method |
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