A comparative study of the mechanical properties and failure behavior of carbon fiber/epoxy and carbon fiber/polyamide 6 unidirectional composites

Two types of unidirectional carbon fiber reinforced plastic were fabricated using identical carbon fibers but different matrix systems. Thermoplastic polyamide 6 and thermosetting epoxy were used as matrices. A large number of on-axis tensile tests of unidirectional carbon fiber reinforced polyamide...

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Bibliographic Details
Published in:Composite structures 2017-01, Vol.160, p.89-99
Main Authors: Ma, Yan, Ueda, Masahito, Yokozeki, Tomohiro, Sugahara, Toshi, Yang, Yuqiu, Hamada, Hiroyuki
Format: Article
Language:English
Subjects:
Carbon fiber reinforced plastics
Carbon-epoxy composites
Damage mechanics
Failure
Failure behavior
Fracture mechanics
Laminates
Mechanical properties
Polyamide resins
Polymer matrix composite
Prepreg
Tensile tests
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Summary:Two types of unidirectional carbon fiber reinforced plastic were fabricated using identical carbon fibers but different matrix systems. Thermoplastic polyamide 6 and thermosetting epoxy were used as matrices. A large number of on-axis tensile tests of unidirectional carbon fiber reinforced polyamide 6 (CF/PA6) and the unidirectional carbon fiber reinforced epoxy (CF/Epoxy) laminates were performed. Mechanical properties and failure behaviors are discussed based on fiber distribution, impregnation conditions and interfacial shear strength. Tensile strengths were predicted by means of a modified global load sharing model and compared with experimental results. Step-by-step tensile tests revealed the fracture process of 0-degree unidirectional CF/PA6 laminates.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2016.10.037