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Title: Damage development in woven carbon fiber/epoxy composites modified with carbon nanotubes under tension in the bias direction
Authors: De Greef, Niels ×
Gorbatikh, Larissa
Lomov, Stepan Vladimirovitch
Verpoest, Ignace #
Issue Date: Nov-2011
Publisher: Elsevier Science Ltd.
Series Title: Composites A, Applied Science and Manufacturing vol:42 issue:11 pages:1635-1644
Abstract: The study investigates the effect of carbon nanotubes (CNTs) on the damage development in a woven carbon fiber/epoxy composite under quasi-static tension in the bias direction. The composite is produced by the resin transfer molding and contains 0.25 wt.% of CNTs in the matrix. The tensile tests are carried Out till different strain levels and are accompanied with acoustic emission (AE) registration. The nano-modified composite possesses a higher stiffness and strain-to-failure. It also exhibits a significantly increased AE activity, both in terms of the number of events and the energy level, but reveals a lower crack density. The combined analysis of the AE data and X-ray images indicates that in the nano-modified composite cracks progress through the material in smaller jumps than in the virgin composite. The crack faces in the composite with CNTs also display a fine web of secondary fractures, which is not detected in the virgin composite. (C) 2011 Elsevier Ltd. All rights reserved.
URI: 
ISSN: 1359-835X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Mechanical Metallurgy Section (-)
Department of Materials Engineering - miscellaneous
× corresponding author
# (joint) last author

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