Damage Tolerance of Carbon Fabric/Epoxy Composite for Korean Tilting Train Carbody

Abstract:

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Interlaminar fracture behavior of carbon fabric/epoxy composite, which is one of the candidate composites for the Korean tilting train carbody, was investigated. Specimens were made of a CF3227 plain fabric with an epoxy resin. An initial starter crack was formed by inserting a 12.5 thick Teflon film at the one end of the specimen. Interlaminar fracture toughness was evaluated using the mixed mode flexural fixture, which provides a wide range of mixed mode deformation by varying the length of lever arm. According to the results, the crack growth was progressive and stable under mode I dominantly mixed mode ratio and was relatively rapid and unstable under mode II dominantly mixed mode ratio. The mixed mode interlaminar fracture behavior can be predicted by a mixed mode fracture criterion depending on the point at which the crack growth was associated.

Info:

Periodical:

Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang

Pages:

449-452

DOI:

10.4028/www.scientific.net/KEM.334-335.449

Citation:

S. H. Yoon et al., "Damage Tolerance of Carbon Fabric/Epoxy Composite for Korean Tilting Train Carbody", Key Engineering Materials, Vols. 334-335, pp. 449-452, 2007

Online since:

March 2007

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Price:

$35.00

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