Evolution of Strain Fields During Tensile Tests of Random Discontinuous Carbon/Epoxy Composites

Compression molding is a closed mold process, the most common choice for high-volume composite parts. This work investigates a material system composed of randomly oriented discontinuous carbon fiber prepreg strands to be consolidated by compression molding. Previous studies by the authors have show...

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Bibliographic Details
Main Authors: Nicoletto, Gianni, Valenti, Francesco, di Filippo, Antonio
Format: Conference Proceeding
Language:English
Subjects:
Carbon fiber reinforced polymer
compressione molding
damage
digital image corralation
random oriented strands
strain
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Summary:Compression molding is a closed mold process, the most common choice for high-volume composite parts. This work investigates a material system composed of randomly oriented discontinuous carbon fiber prepreg strands to be consolidated by compression molding. Previous studies by the authors have shown that this material exhibit a strong variability in elastic modulus and in mechanical strength. Here the full-field DIC technique shows the strong strain variation both across the specimen surface and thickness-wise due to the highly non-homogenous structure of the material during the tensile test up to rupture.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2016.03.053