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The effect of mechanical and thermal properties of FRP bars on their tensile performance under elevated temperatures

Ashrafi, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.conbuildmat.2017.09.160
  3. Abstract:
  4. In this experimental study the effect of physical and thermal properties of various FRP bars on their performance under elevated temperatures are investigated. The parameters included the bars' diameter, type of fiber, type of resin, fiber to matrix ratio, and thermal properties were studied. Moreover, ANOVA (ANalysis Of VAriance) was performed in order to investigate the contribution of each variable on the obtained results. The results showed that in addition to the temperature, the bars' diameter, type of fiber, type of resin, and thermal properties (Tg and Td) of the FRP bars have contributions to the results, while the fiber to matrix ratio was found to be an ineffective factor. It was also found that the FRP bars experienced significant reductions in their ultimate tensile strength upon exposure to extreme temperatures of up to 450 °C, at which they lost about 50–70% of their reference tensile strength. © 2017 Elsevier Ltd
  5. Keywords:
  6. Fiber-reinforced-polymer (FRP) bars ; FRP ; Thermal properties ; Fiber reinforced plastics ; Fibers ; Mechanical testing ; Resins ; Tensile strength ; ANOVA (analysis of variance) ; Elevated temperature ; Extreme temperatures ; Fiber reinforced polymer bars ; FRP bar ; Mechanical and thermal properties ; Tensile performance ; Ultimate tensile strength ; Thermodynamic properties
  7. Source: Construction and Building Materials ; Volume 157 , 2017 , Pages 1001-1010 ; 09500618 (ISSN)
  8. URL: https://www.sciencedirect.com/science/article/pii/S0950061817319864