Hygrothermal effects on durability and moisture kinetics of fiber-reinforced polymer composites.

Details

• Creators:
  Surathi, Padmavath ; Karbhari, Vistasp M.
• Corporate Creators:
  University of California, San Diego. Dept. of Structural Engineering
• Subject/TRT Terms:
  • Fiber-reinforced plastics
  • Environmental testing
  • Hygrometry
• Publication/ Report Number:
  FHWA/CA/ES-07/01
• Resource Type:
  Tech Report
• Geographical Coverage:
  California
• Corporate Publisher:
  California. Dept. of Transportation. Division of Engineering Services
• Abstract:
  Fiber-Reinforced Polymer (FRP) composites offer many advantages over conventional materials for ; applications in the marine and civil infrastructure areas. Their increasing widespread use emphasizes the ; need to predict their performance over long periods of time after being subjected to exposure to different ; environmental conditions. The kinetics of fluid sorption E-glass/vinylester composites is studied widely using ; the Fickian and Langmuir diffusion models. The time and temperature dependence of the rate of diffusion and ; maximum moisture content are analyzed and moisture kinetics data is assessed is assessed for use in ; performance predictions. ; It is seen that various processes of degradation, both reversible and irreversible, are induced in the ; composite materials on exposure to moisture. The durability characteristics of unidirectional E-glass-Vinylester ; composites under the influence of relative humidity and immersion in water at different temperatures are ; investigated. The correlation between tensile and flexural strength data is investigated using statistical models. ; This research attempts to analyze the behavior of FRP composites exposed to the aforementioned ; environments and theoretically model their effects on the mechanical properties (tensile strength, tensile ; modulus, flexural strength and short beam shear strength) of the FRP composites, for purposes of long-term ; prediction. This study attempts to develop an initial correlation between effects due to immersion in deionized ; water with those due to exposure to humidity to further develop techniques for prediction of durability of these ; materials under field conditions.
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• Format:
  PDF
• Funding:
  59A0309
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27688/dot_27688_DS1.pdf
• File Type:
  [PDF - 1.24 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:1d54ba2ddccbd0738ff0dffec0d5e147435731c98d39793781cbefc6ed1f1836