Time dependency of carbon/epoxy interface strength

This paper describes time-dependent fiber/matrix interfacial strength of carbon fiber reinforced polymeric composite. The time-dependent interfacial strength is extracted from the results of transverse tensile tests with various loading rates and their fractography in the unidirectional composite. T...

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Bibliographic Details
Published in:	Composite structures Vol. 92; no. 1; pp. 150 - 154
Main Authors:	Koyanagi, Jun, Yoneyama, Satoru, Eri, Katsuya, Shah, Pranav D.
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 2010 Elsevier
Subjects:	Applied sciences Composites Exact sciences and technology Forms of application and semi-finished materials Fracture mechanics (crack, fatigue, damage...) Fundamental areas of phenomenology (including applications) Interface Physics Polymer industry, paints, wood Solid mechanics Strength Structural and continuum mechanics Technology of polymers Time dependency Transverse tensile test Unidirectional composite Transverse tensile test Time dependency Interface Strength Unidirectional composite Unidirectional fiber material Rupture Failure rate Tension test Composite material Matrix fiber interface Carbon fiber reinforced plastics Loading test(mechanics) Fractography Carbon fiber Strain rate
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Summary:	This paper describes time-dependent fiber/matrix interfacial strength of carbon fiber reinforced polymeric composite. The time-dependent interfacial strength is extracted from the results of transverse tensile tests with various loading rates and their fractography in the unidirectional composite. The results show that the material failure is dominated by interface failure under relatively high-loading rate whereas matrix failure is dominant under relatively low-loading rate. In light of the results, it is concluded that the time dependency of the interfacial strength might be neglected or at least could be less significant than that of matrix strength.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0263-8223 1879-1085
DOI:	10.1016/j.compstruct.2009.07.016