FE Models of GFRP and CFRP Strengthening of Reinforced Concrete Beams | Zendy

Kasidit Chansawat | Zendy; Tanarat Potisuk | Zendy; Thomas H. Miller | Zendy; Solomon C. Yim | Zendy; Damian I. Kachlakev | Zendy

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FE Models of GFRP and CFRP Strengthening of Reinforced Concrete Beams

Author(s) -

Kasidit Chansawat,

Tanarat Potisuk,

Thomas H. Miller,

Solomon C. Yim,

Damian I. Kachlakev

Publication year - 2009

Publication title -

advances in civil engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.379

H-Index - 25

eISSN - 1687-8094

pISSN - 1687-8086

DOI - 10.1155/2009/152196

Subject(s) - fibre reinforced plastic , beam (structure) , cracking , materials science , structural engineering , flexural strength , shear (geology) , reinforced concrete , finite element method , full scale , composite material , scale model , engineering , aerospace engineering

Three-dimensional finite element (FE) models are developed to simulate the behavior of full-scale reinforced concrete beams strengthened with glass and carbon fiber-reinforced polymer sheets (an unstrengthened control beam, a flexural-strengthened beam, a shear-strengthened beam, and a beam with both shear and flexural strengthening). FE models use eight-node isoparametric elements with a smeared cracking approach for the concrete and three-dimensional layered elements to model the FRP composites. Analysis results are compared with data obtained from full-scale beam tests through the linear and nonlinear ranges up to failure. It was found that the FE models could identify qualitatively trends observed in the structural behavior of the full-scale beams. Predicted crack initiation patterns resemble the failure modes observed for the full-scale beam tests

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