Evaluation of the strength and stiffness of glue-laminated fibre composite sandwich panels for structural beam application
Paper
Paper/Presentation Title | Evaluation of the strength and stiffness of glue-laminated fibre composite sandwich panels for structural beam application |
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Presentation Type | Paper |
Authors | Manalo, Allan C. (Author), Aravinthan, Thiru (Author) and Karunasena, Warna (Author) |
Editors | Teh, Kian, Davies, Ian and Howard, Ian |
Journal or Proceedings Title | Proceedings of the 6th Australasian Congress on Applied Mechanics (ACAM 6) |
ERA Conference ID | 42491 |
Number of Pages | 10 |
Year | 2010 |
Place of Publication | Perth, Australia |
ISBN | 9780858259416 |
Web Address (URL) of Paper | http://search.informit.com.au/documentSummary;res=IELENG;dn=013932757925020 |
Conference/Event | 6th Australasian Congress on Applied Mechanics (ACAM 6) |
Australasian Congress on Applied Mechanics | |
Event Details | Australasian Congress on Applied Mechanics Rank A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A |
Event Details | 6th Australasian Congress on Applied Mechanics (ACAM 6) Event Date 12 to end of 15 Dec 2010 Event Location Perth, Western Australia |
Abstract | An evaluation of the behaviour of innovative structural beams made by gluing together a number of composite sandwich panels in the flatwise and in the edgewise positions is presented in this paper. The building block of these innovative beams is a composite sandwich structure made up of glass fibre reinforced polymer skins and modified phenolic foam core material. Four-point static bending and asymmetrical beam shear tests were conducted to evaluate the strength and stiffness of these structural beams. The effect of the number and orientation of sandwich laminations on the behaviour of the glue-laminated sandwich beams is investigated. Results showed that beams tested in the edgewise position failed with higher strength but have slightly lower bending stiffness than beams in the flatwise position. More importantly, the specimens in the edgewise position failed with greater ductility due to the progressive failure of the vertical fibre composite skins while the specimens in the flatwise position failed in a brittle manner due to compressive failure of the fibre composite skins. Under shear loading, the behaviour of the sandwich beams in the flatwise position is governed by the shear strength of the core while in the edgewise position by the shear strength of the fibre composite skin. The results of the theoretical evaluation of the flexural and shear strengths of the sandwich beams were in good agreement with the experimental results. Preliminary examination showed the high potential of glue-laminated sandwich beams for replacement of deteriorating timber structures. |
Keywords | fibre composites; flexure; glulam beams; phenolic core; sandwich structure; shear |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
400504. Construction engineering | |
401602. Composite and hybrid materials | |
Public Notes | Copyright Engineers Australia 2010. Permanent restricted access to published version due to publisher copyright policy |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
https://research.usq.edu.au/item/q0353/evaluation-of-the-strength-and-stiffness-of-glue-laminated-fibre-composite-sandwich-panels-for-structural-beam-application
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