Details:

Creators:
Surathi, Padmavath ; Karbhari, Vistasp M.
Surathi, Padmavath ; Karbhari, Vistasp M. Less -
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:

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