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Title |
3-D Finite Element Model for Predicting Bending and Shear Failure of RC Beams
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Keywords |
철근콘크리트 보 ; 유한요소모델 ; 휨과 전단 ; 변형률 공간 파괴기준 Reinforced concrete beam ; finite element model ; bending and shear ; failure surface in strain surface |
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Abstract |
Three-dimensional finite element model for analysis of reinforced concrete members was developed in order to investigate the prediction of bending and shear failure of reinforced concrete beams. A failure surface of concrete in strain space was newly proposed in order to predict accurately the ductile response of concrete under multi-axial confining stresses. Cracking of concrete in triaxial state was incorporated with considering the tensile strain-softening behavior of cracked concrete as well as the cracked shear behavior on cracked surface of concrete caused by aggregate interlocking and, dowel action. By correlation study on failure types of bending and shear of beams, current finite element model was well simulated not only the type of ductile bending failure of under-reinforced beams but also the type of brittle shear failure of no-stirruped reinforced concrete beam.
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