Higher-Order Effects in Biaxial Flexure of GFRP I-Section Beams

Zia Razzaq and Faridoon Z. Razzaq
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Zia Razzaq: Old Dominion University, USA
Faridoon Z. Razzaq: New York State Department of Transportation, USA

European Journal of Engineering and Technology Research, 2023, vol. 8, issue 2, 16-18

Abstract: A theoretical study of Glass Fiber Reinforced Polymer (GFRP) beams subjected to biaxial bending moments is presented with a focus on the influence of higher-order effects on maximum normal stresses. It is shown that the biaxial bending type of loading causes a dramatic increase in the maximum normal stress for a GFRP beam when induced torsional effects are included. The study demonstrates that the traditional first-order theory can grossly underestimate the maximum normal stress in a GFRP beam. Based on the numerical results presented using a higher-order theory which also accounts for induced warping normal stresses, the maximum normal stress is found to be about two to three times larger than that determined using the first-order theory.

Keywords: Biaxial Flexure; Glass Fiber Reinforced Polymer (GFRP); Higher-Order Effects; I-Section Beams (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:8:y:2023:i:2:id:62967

DOI: 10.24018/ejeng.2023.8.2.2967

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