Behaviours of hybrid reinforced polymer (FRP)-timber (HFT) thin-walled Cee section columns under axial compression – influence of the cross-section geometry.
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| Title: | Behaviours of hybrid reinforced polymer (FRP)-timber (HFT) thin-walled Cee section columns under axial compression – influence of the cross-section geometry. |
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| Authors: | Wen, Ye1 (AUTHOR), Gilbert, Benoit2 (AUTHOR), Zhang, Shishuan3 (AUTHOR), Bailleres, Henri4 (AUTHOR), Fernando, Dilum1,5 (AUTHOR) dilum.fernando@ed.ac.uk |
| Source: | Thin-Walled Structures. Oct2025:Part A, Vol. 215, pN.PAG-N.PAG. 1p. |
| Subjects: | Thin-walled structures, Aluminum construction, Columns, Failure mode & effects analysis, Laminated materials |
| Abstract: | • Hybrid fibre reinforced polymer (FRP)-timber (HFT) thin-walled Cee section columns of various cross section geometries were tested under axial compression. • Increase in section geometry results in failure mode changing from global buckling to local buckling. • Increase in length was found to increase the tendance towards global buckling. • Weight specific capacity of the HFT Cee sections in the current study was found to be either similar or higher than the previously reported values. Hybrid fibre reinforced polymer (FRP)-timber (HFT) thin-walled structural members are a novel technology developed recently as a sustainable alternative to thin-walled steel and aluminium structures. HFT structures are made by forming thin timber veneers and FRP laminates into efficient cross-sectional geometries. Existing studies have demonstrated the potential of HFT thin-walled members as load bearing structural members. Adding to the existing knowledge, this paper presents a study aimed at investigating the influence of cross-section geometry on the behaviour of HFT thin-walled Cee section columns. Three different cross-sections and two different specimen lengths were selected to examine the columns' local and global buckling failures. When the cross-section is small, failure was dominated by the global buckling of the column, while increase in cross-section geometry results in failure mode changing to local buckling of the specimens. An increase in specimen length changed the failure mode from local buckling to global buckling for some specimens. Finite element (FE) models were also developed to capture the behaviour of the HFT thin-walled Cee section columns under concentric axial compression. Results from the FE models agreed well with the experimental results. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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