Investigation of the free vibration behaviour of an innovative GFRP sandwich floor panel

Awad, Ziad K. and Aravinthan, Thiru and Zhuge, Yan (2012) Investigation of the free vibration behaviour of an innovative GFRP sandwich floor panel. Construction and Building Materials, 37. pp. 209-219. ISSN 0950-0618


A new GFRP sandwich floor panel has been developed in the last few years to replace the traditional timber panel. This panel has acceptable structural mechanical properties to be used in civil engineering applications. The present work focuses on the free vibration behaviour of the one-way, two-way, and continuous GFRP sandwich floor panels. Few different variables were considered in this study; span of the panel, single spanning, continuous spanning, panel restrain types at supports, and skin fibre orientations. The restraints types considered are free, screws, and glue. A 3D numerical finite element model was developed to find the mode shape of different panels. It was found that the natural frequency of this panel is non-linear with respect to span variations. The orientation 0°/90° gives higher frequency than ±45° in the case of one-way spanning panel, and the orientation ±45° gives higher frequency than 0°/90° in the case of two-way spanning panel.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 09 Mar 2013 02:41
Last Modified: 19 Aug 2014 02:23
Uncontrolled Keywords: GFRP sandwich, floor panel, composite, free vibration, frequency, finite element method
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI: 10.1016/j.conbuildmat.2012.07.039

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