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  4. Zero stress aging of glass and carbon fibers in water and oil : strength reduction explained by dissolution kinetics
 
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Zero stress aging of glass and carbon fibers in water and oil : strength reduction explained by dissolution kinetics

Citation Link: https://doi.org/10.15480/882.2531
Publikationstyp
Journal Article
Publikationsdatum
2019-12-06
Sprache
English
Author
Echtermeyer, Andreas T. 
Krauklis, Andrey E. 
Gagani, Abedin I. 
Sæter, Erik 
Institut
Kunststoffe und Verbundwerkstoffe M-11 
DOI
10.15480/882.2531
TORE-URI
http://hdl.handle.net/11420/3968
Lizenz
https://creativecommons.org/licenses/by/4.0/
Enthalten in
Fibers 
Volume
7
Article Number
107
Citation
Fibers 7 (12): 107 (2019)
Publisher DOI
10.3390/fib7120107
Scopus ID
2-s2.0-85076894856
Publisher
Multidisciplinary Digital Publishing Institute
Understanding the strength degradation of glass and carbon fibers due to exposure to liquids over time is important for structural applications. A model has been developed for glass fibers that links the strength reduction in water to the increase of the Griffith flaw size of the fibers. The speed of the increase is determined by regular chemical dissolution kinetics of glass in water. Crack growth and strength reduction can be predicted for several water temperatures and pH, based on the corresponding dissolution constants. Agreement with experimental results for the case of water at 60 °C with a pH of 5.8 is reasonably good. Carbon fibers in water and toluene and glass fibers in toluene do not chemically react with the liquid. Subsequently no strength degradation is expected and will be confirmed experimentally. All fiber strength measurements are carried out on bundles. The glass fibers are R-glass.
DDC Class
600: Technik
620: Ingenieurwissenschaften
Projekt(e)
245606/E30 in the Petromaks 2 programme 
More Funding Information
Research Council of Norway
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