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Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites

The mode II interlaminar fracture properties of two high performance composites have been examined in detail. The failure mechanisms occurring in these materials are investigated using the double end-notched flexure (DENF) geometry. Tests have been undertaken at crosshead displacement rates betwe...

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Main Authors: Rozli Zulkifli,, Cantwell, Wesley J., Matt Blyton,
Format: Article
Published: 1999
Online Access:http://journalarticle.ukm.my/1362/
http://www.ukm.my/jkukm/index.php/jkukm
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spelling my-ukm.journal.13622011-10-11T03:45:30Z http://journalarticle.ukm.my/1362/ Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites Rozli Zulkifli, Cantwell, Wesley J. Matt Blyton, The mode II interlaminar fracture properties of two high performance composites have been examined in detail. The failure mechanisms occurring in these materials are investigated using the double end-notched flexure (DENF) geometry. Tests have been undertaken at crosshead displacement rates between 0.1 mm/minute and 3m/s and the failure mechanisms investigated in the scanning electron microscope. Detail studies of the crack tip regions in the DENF specimens showed that the amount and nature of damage depended strongly on the rate at which the specimen was deformed. At low loading rates, the crack tip damage zone in carbon fibre reinforced PEEK was very large extending on planes above and below that of the starter defect. At high rates of loading, damage was confined to the resin-rich region immediate to the crack tip. Similar observations were made in the carbon fibre/epoxy composite where large shear cracks were evident at low - rates of loading and an array of microcracks at high rates 1999 Article PeerReviewed Rozli Zulkifli, and Cantwell, Wesley J. and Matt Blyton, (1999) Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites. Jurnal Kejuruteraan, 11 . http://www.ukm.my/jkukm/index.php/jkukm
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
description The mode II interlaminar fracture properties of two high performance composites have been examined in detail. The failure mechanisms occurring in these materials are investigated using the double end-notched flexure (DENF) geometry. Tests have been undertaken at crosshead displacement rates between 0.1 mm/minute and 3m/s and the failure mechanisms investigated in the scanning electron microscope. Detail studies of the crack tip regions in the DENF specimens showed that the amount and nature of damage depended strongly on the rate at which the specimen was deformed. At low loading rates, the crack tip damage zone in carbon fibre reinforced PEEK was very large extending on planes above and below that of the starter defect. At high rates of loading, damage was confined to the resin-rich region immediate to the crack tip. Similar observations were made in the carbon fibre/epoxy composite where large shear cracks were evident at low - rates of loading and an array of microcracks at high rates
format Article
author Rozli Zulkifli,
Cantwell, Wesley J.
Matt Blyton,
spellingShingle Rozli Zulkifli,
Cantwell, Wesley J.
Matt Blyton,
Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
author_facet Rozli Zulkifli,
Cantwell, Wesley J.
Matt Blyton,
author_sort Rozli Zulkifli,
title Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
title_short Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
title_full Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
title_fullStr Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
title_full_unstemmed Mode II interlaminar failure mechanisms in carbon fibre / PEEK and carbon fibre / epoxy composites
title_sort mode ii interlaminar failure mechanisms in carbon fibre / peek and carbon fibre / epoxy composites
publishDate 1999
url http://journalarticle.ukm.my/1362/
http://www.ukm.my/jkukm/index.php/jkukm
_version_ 1643734997836759040
score 13.244413

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