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:
  Environmental Testing Fiber-reinforced Plastics 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.
  
  
• Format:
  PDF
• Funding:
  59A0309
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:1d54ba2ddccbd0738ff0dffec0d5e147435731c98d39793781cbefc6ed1f1836
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27688/dot_27688_DS1.pdf
• File Type:
  [PDF - 1.24 MB ]