Effects of fibre orientation and layup on the mechanical properties of the pultruded glass fibre reinforced polymer tubes

Al-Saadi, Ali Umran and Aravinthan, Thiru and Lokuge, Weena (2019) Effects of fibre orientation and layup on the mechanical properties of the pultruded glass fibre reinforced polymer tubes. Engineering Structures, 198 (Article - 109448). pp. 1-16. ISSN 0141-0296

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Pultruded glass fibre reinforced polymer (PFRP) tubes are becoming popular in civil engineering applications due to their unique features. The focus of this paper is on column applications. It addresses the understanding of the correlation between the mechanical properties of PFRP tubes and their material constituents. The burnout, tensile, compressive and shear tests were undertaken for square and circular PFRP tubes. Full scale compressive test was also conducted to compare the axial behaviour of pultruded FRP tubes. Moreover, a finite element analysis was carried out to simulate the compressive behaviour of full-scale specimens and to predict the axial behaviour of FRP columns of different length-to lateral dimension ratios. The results of compressive coupon tests are compared with those of full-scale tests which are used to check the accuracy of finite element simulation in terms of load-deflection curves , load capacity and failure mode. Results show that the strength and modulus depend on the fibre orientation and percentage of fibres in the axial direction. It further states the behaviour of full scale specimen is linear up to failure and the post peak behaviour of square tubes is affected by the continuity of non-axial fibre layers at corners. The numerical study reveals that the compressive behaviour of FRP tubes can be predicted reasonably.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Submitted version made available in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 10 Sep 2019 03:51
Last Modified: 28 Oct 2020 05:12
Uncontrolled Keywords: Material characterisation; Coupon test; Short column test; fibre content; fibre orientation; Pultruded FRP tube
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090505 Infrastructure Engineering and Asset Management
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: https://doi.org/10.1016/j.engstruct.2019.109448
URI: http://eprints.usq.edu.au/id/eprint/37005

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