Comparison of Fracture Characteristics of Open-Hole-Notch Carbon-Fiber-Reinforced Composites Subjected to Tensile and Compressive Loadings

Open-hole tension (OHT) and open-hole compression (OHC) tests were carried out on hot-pressed carbon-fiberreinforced composite samples with a singular open hole. The fracture surfaces of the OHT- and OHC-tested specimens were examined by using scanning electron microscopy (SEM). SEM micrographs show...

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Bibliographic Details
Published in:Mechanics of composite materials 2017, Vol.52 (6), p.751-758
Main Authors: Saeed, M.-U., Chen, Z. F., Chen, Z. H., Li, B. B.
Format: Article
Language:English
Subjects:
Aluminum
Carbon
Carbon fibers
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Comparative studies
Composite materials
Composite structures
Composites
Compressing
Compression tests
Failure analysis
Failure mechanisms
Fiber composites
Fiber-matrix interfaces
Fracture mechanics
Fracture surfaces
Glass
Materials Science
Micrographs
Natural Materials
Photomicrographs
Scanning electron microscopy
Solid Mechanics
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Summary:Open-hole tension (OHT) and open-hole compression (OHC) tests were carried out on hot-pressed carbon-fiberreinforced composite samples with a singular open hole. The fracture surfaces of the OHT- and OHC-tested specimens were examined by using scanning electron microscopy (SEM). SEM micrographs showed significant features on the surface of carbon fiber, matrix, and especially in the fiber/matrix interface. Interpretation of these micrographs revealed the possible failure mechanism of composite samples with an open hole under tensile and compressive loadings. Furthermore, a comparative study of these micrographs also pointed to certain specific differences between the fracture characteristics of open-hole composite samples failed under tension and compression. This information is useful in the post-failure analysis of a composite structure.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-017-9625-4