European Journal of Engineering and Technology Research
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.
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Original Publication Citation
Razzaq, Z., & Razzaq, F. Z. (2023). Higher-order effects in biaxial flexure of GFRP I-section beams. European Journal of Engineering and Technology Research, 8(2), 16-18. https://doi.org/10.24018/ejeng.2023.8.2.2967
Razzaq, Zia and Razzaq, Faridoon Z., "Higher-Order Effects in Biaxial Flexure of GFRP I-Section Beams" (2023). Civil & Environmental Engineering Faculty Publications. 71.