Abstract
The cylinder test, developed from the microdroplet test, was adapted to assess the interfacial adhesion strength between fiber and matrix. The sensitivity of cylinder test to pull-out speed and specimen geometry was measured. It was established that the effect of test speed can be described as a superposition of two opposite, simultaneous effects which have been modeled mathematically by fitting two parameter Weibull curves on the measured data. Effects of the cylinder size and its geometrical relation on the measured strength values have been analyzed by finite element method. It was concluded that the geometry has a direct influence on the stress formation. Based on the results achieved, recommendations were given on how to perform the novel single fiber cylinder test.
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Acknowledgements
The content of this work is related to the project “Development of coordinated, quality oriented, educational and R + D + I strategy and operational model at the Technical University” supported by the New Széchenyi Plan, under program number TÁMOP-4.2.1/B-09/1/KMR-2010-0002.
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Morlin, B., Vas, L.M. & Czigany, T. Investigation of fiber/matrix adhesion: test speed and specimen shape effects in the cylinder test. J Mater Sci 48, 3185–3191 (2013). https://doi.org/10.1007/s10853-012-7097-4
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DOI: https://doi.org/10.1007/s10853-012-7097-4