Alhawamdeh, Mohammad and Alajarmeh, Omar 
ORCID: https://orcid.org/0000-0002-9446-5436 and Aravinthan, Thiru ORCID: https://orcid.org/0000-0003-0691-8296 and Shelley, Tristan ORCID: https://orcid.org/0000-0002-4812-0285 and Schubel, Peter ORCID: https://orcid.org/0000-0003-1610-0922 and Mohammed, Ali and Zeng, Xuesen
(2021)
Review on Local Buckling of Hollow Box FRP Profiles in Civil
Structural Applications.
Polymers, 13 (23):4159.
pp. 1-27.
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Text (Published Version)
Review on Local Buckling of Hollow Box FRP Profiles in Civil Structural Applications.pdf Available under License Creative Commons Attribution 4.0. Download (6MB) | Preview |
Abstract
Hollow box pultruded fibre-reinforced polymers (PFRP) profiles are increasingly used as struc-tural elements in many structural applications due to their cost-effective manufacturing process, excellent mechanical properties-to-weight ratios, and superior corrosion resistance. Despite the extensive usage of PFRP profiles, there is still a lack of knowledge in the design for manufacturing against local buckling on the structural level. In this review, the local buckling of open-section (I, C, Z, L, T shapes) and closed-section (box) FRP structural shapes was systematically compared. The local buckling is influenced by the unique stresses distribution of each section of the profile shapes. This article reviews the related design parameters to identify the research gaps in order to expand the current design standards and manuals of hollow box PFRP profiles and to broaden their ap-plications in civil structures. Unlike open-section profiles, it was found that local buckling can be avoided for box profiles if the geometric parameters are optimised. The identified research gaps include the effect of the corner (flange-web junction) radius on the local buckling of hollow box PFRP profiles and the interactions between the layup properties, the flange-web slenderness, and the corner geometry (inner and outer corner radii). More research is still needed to address the critical design parameters of layup and geometry controlling the local buckling of pulwound box FRP profiles and quantify their relative contribution and interactions. Considering these inter-actions can facilitate economic structural designs and guidelines for these profiles, eliminate any conservative assumptions, and update the current design charts and standards.
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