Temperature effects on a fibre reinforced polymer material

Zerbst, Samuel David William (2009) Temperature effects on a fibre reinforced polymer material. [USQ Project] (Unpublished)

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Abstract

This dissertation details an investigation into the physical effects that temperature has on a specific fibre composite material. The investigation is based on a fibre reinforced polymer material that has been successfully developed and integrated into various applications in the civil and electrical industries. This project has investigated the effects that elevated temperatures up to 105°C have on the strength and elastic properties, the temperature variations observed within structural members in a natural environment and an analysis of changes in strength of a structural design due to temperature variations. Using practical and accurate methods of experimentation it was found that between the temperatures of 20°C and 105°C, the flexural strength of the material decreases linearly to approximately 28% of its initial strength, thus tensile strength, compressive strength and bending moment capacity are expected to also decrease linearly at a proportional rate. Results for flexural modulus confirmed an expected behaviour and displayed a relatively small drop in modulus over the temperature range. In collaboration with these results, temperature data recorded over an approximate 4 day period and a brief analysis of a small foot bridge constructed from the composite material confirmed that at high operating temperatures it is not likely that the stresses created at maximum loading will exceed the strength capacity of a composite structure, however modifications may be required to compensate for losses in modulus at elevated temperatures, depending on the structure requirements and specifications


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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 16 Jul 2010 05:11
Last Modified: 16 Jul 2010 06:19
Uncontrolled Keywords: fibre composite; polymer; structural impact; temperature
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
URI: http://eprints.usq.edu.au/id/eprint/8408

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