The influence of hydrostatic pressure on the interlaminar fracture toughness of carbon/epoxy composites

Type Publication
Date 2006-07
Language English
Copyright 2006 Elsevier Ltd All rights reserved
Author(s) Cartie D1, Davies PeterORCID2, Peleau Michel2, Partridge I.K.1
Affiliation(s) 1 : Cranfield Univ, Dept Adv Mat, Cranfield MK43 0AL, Beds, England.
2 : IFREMER, Ctr Brest, Mat & Struct Grp, F-29280 Plouzane, France.
Source Composites Part B: Engineering (1359-8368) (Elsevier), 2006-07 , Vol. 37 , N. 4-5 , P. 292-300
DOI 10.1016/j.compositesb.2005.12.002
WOS© Times Cited 13
Keyword(s) Fracture, Mechanical properties, Fracture toughncss
Abstract The use of composites for deep sea applications requires a thorough understanding of the behaviour of these materials. While several studies have examined the influence of pressure on in-plane properties few data are available for the interlaminar fracture behaviour. This paper presents results from such tests performed in a specially designed pressure vessel mounted on a standard test machine, which allows pressures up to 1000 bars (100 MPa) to be applied during mechanical testing. Mode I and Mode 11 tests have been performed on a unidirectional IM7/977-2 carbon/epoxy composite. No effect of pressure was noted on Mode I fracture toughness. A data reduction scheme has been developed for Mode 11 loading and an increase in Glic with increasing pressure was noted. (c) 2006 Elsevier Ltd. All rights reserved.
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