Bearing Strength and Failure Mechanisms of Riveted Woven Carbon Composite Joints

This research aimed to determine riveted carbon/epoxy composites’ mechanical performance when fabricated by resin transfer molding (RTM). As this manufacturing process is gaining importance in the aeronautics and automotive industries, assembly methods and their reliability must be studied in terms...

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Bibliographic Details
Published in:Aerospace 2021-04, Vol.8 (4), p.105
Main Authors: Torres-Arellano, Mauricio, Bolom-Martínez, Manuel de Jesus, Franco-Urquiza, Edgar Adrian, Pérez-Mora, Ruben, Jiménez-Arévalo, Omar A., Olivier, Philippe
Format: Article
Language:English
Subjects:
Aeronautics
Aircraft reliability
Automobile industry
Bearing strength
Carbon
carbon fibers
Carbon-epoxy composites
Computed tomography
CT scan
delamination
Failure analysis
Failure mechanisms
Fracture mechanics
Laminates
Load
Manufacturing industry
Mechanical properties
Microscopy
Residual strength
Resin transfer molding
rivets
Shear strength
Strength
Tensile strength
Woven composites
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Summary:This research aimed to determine riveted carbon/epoxy composites’ mechanical performance when fabricated by resin transfer molding (RTM). As this manufacturing process is gaining importance in the aeronautics and automotive industries, assembly methods and their reliability must be studied in terms of their airworthiness and transportation implementation. The study case resumes the determination of the bearing strength of RTM-woven carbon composites for different rivet joint diameters (1/8, 5/32 and 3/16 in). The joint shear strength was obtained following the ASTM D5961 instructions, and post-failure analysis was carried out by a computerized tomography scan. A residual strength curve is provided with the results to infer the bearing strength for the riveted composites as a function of the rivet width-to-diameter ratio. A discussion of the fracture mechanism and tensile strength is carried out to assess the understanding of the riveted woven composites.
ISSN:2226-4310
2226-4310
DOI:10.3390/aerospace8040105