Corrosion induced damage model for ductile fiber reinforced cementitious composites
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This paper presents a finite element (FE) based numerical model to simulate the corrosion-induced cracking of reinforced beams containing ductile fiber-reinforced cementitious composites (DFRCC) and ordinary concrete. The strains obtained from the FE models are compared with that measured by the fiber-optic strain sensor (FOSS) gauge, which is placed between longitudinal steel bars at midspan of reinforced concrete (RC) beams during the accelerated corrosion test. The model could predict the corrosion-induced damage tolerance of DFRCC material and found that it is several times higher than that of ordinary concrete. The model predicted uniform damage in the DFRCC material due to corrosion compared with localized damage in ordinary concrete. The model also predicted that the delamination of the cover of the RC beams containing DFRCC material will occur at a higher level of steel loss compared with that of an ordinary concrete beam.
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Ahmed, Shaikh; Maalej, M.; Mihashi, H. (2007)A finite element (FE) model is proposed to simulate the corrosion-induced cracking of reinforced concrete (RC) beams. The smeared cracking approach is used to model the cracking ofordinary concrete, ductile fiber-reinforced ...
Ahmed, Shaikh (2012)Corrosion induced damage of Reinforced Concrete (RC) structures is the major concern worldwide as it requires costly repair and retrofitting. Different materials are used for such repair and retrofitting, they are ...
Maalej, M.; Ahmed, Shaikh; Paramasivan, P. (2003)This paper reports the results of an experimental program on the effectiveness of a Ductile Fiber Reinforced Cementitious Composite (DFRCC) material, which exhibit strain-hardening and multiple-cracking bahavior under ...