Behaviour of fibre composite sandwich structures under short and asymmetrical beam shear tests
Article
Article Title | Behaviour of fibre composite sandwich structures under short and asymmetrical beam shear tests |
---|---|
ERA Journal ID | 3731 |
Article Category | Article |
Authors | |
Author | Manalo, A. C. |
Editors | Ferreira, Antonio |
Journal Title | Composite Structures |
Journal Citation | 99, pp. 339-349 |
Number of Pages | 11 |
Year | 2013 |
Publisher | Elsevier |
Place of Publication | London, United Kingdom |
ISSN | 0263-8223 |
1879-1085 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compstruct.2012.12.010 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0263822312006289 |
Abstract | The behaviour of structural fibre composite sandwich beams made up of glass fibre composite skins and phenolic core material was investigated under three-point short beam and asymmetrical beam shear tests. The effect of the shear span-to-depth ratio (a/D) was examined on the strength and failure behaviour of the composite sandwich beams. The results showed that with increasing a/D ratio, the failure load of the sandwich beam is decreasing. On the contrary, the coupling effect of flexural stresses increases with increasing a/D ratio. Noticeably, the fibre composite sandwich beams tested under asymmetrical beam shear exhibited higher failure load compared to beams tested under short beam shear. Analysis showed that the shear stress in the core is more dominant than flexural stress when the a/D ratio is 1 for the sandwich beams under short beam test and 1 to 3 for the sandwich beams tested under asymmetrical beams shear test. The proposed prediction equation which accounts for the combined effect of shear and flexural stresses due to the changing a/D ratio showed that it can reasonably estimate the failure load of structural fibre composite sandwich beams. Comparison showed a good agreement with the experimental results. |
Keywords | fibre composites; sandwich beams; phenolic core; shear; short beam; asymmetrical beam |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
400505. Construction materials | |
401602. Composite and hybrid materials | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1v4y/behaviour-of-fibre-composite-sandwich-structures-under-short-and-asymmetrical-beam-shear-tests
Download files
1989
total views535
total downloads3
views this month0
downloads this month