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Pseudo-ductility by fragmentation of central unidirectional plies in thin CFRP angle-ply laminates: 16th European Conference on Composite Materials, ECCM 2014

Pseudo-ductility by fragmentation of central unidirectional plies in thin CFRP angle-ply laminates: 16th European Conference on Composite Materials, ECCM 2014
Pseudo-ductility by fragmentation of central unidirectional plies in thin CFRP angle-ply laminates: 16th European Conference on Composite Materials, ECCM 2014
Pseudo-ductile metal-like tensile stress-strain responses with 700 MPa "yield stress" plateau and 4.0% failure strain have been achieved experimentally using thin-ply carbon epoxy prepreg and [+26n/0]S (n = 8 and 10) layups. Analysis of tested specimens has been conducted using microscopy and ultrasonic C-scan. These show that periodic fibre breakages in the 0° plies lead to local delaminations that propagate along the 0°/ - 26° interfaces. This gradual failure process of fragmentation and dispersed local delamination allows the demonstrated pseudo-ductile strains.
carbon fibre, delamination, pseudo-ductility, thin ply, strain
European Conference on Composite Materials, ECCM
Fuller, J. D.
1cc7f516-492a-4cd4-ad6b-854045ad81fe
Jalalvand, M.
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, M. R.
655f9d97-0d4c-4654-9b0e-3e5150991e42
Fuller, J. D.
1cc7f516-492a-4cd4-ad6b-854045ad81fe
Jalalvand, M.
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, M. R.
655f9d97-0d4c-4654-9b0e-3e5150991e42

Fuller, J. D., Jalalvand, M. and Wisnom, M. R. (2014) Pseudo-ductility by fragmentation of central unidirectional plies in thin CFRP angle-ply laminates: 16th European Conference on Composite Materials, ECCM 2014. In Proceedings 16th European Conference on Composite Materials, ECCM 2014: 16th European Conference on Composite Materials, ECCM 2014; Seville; Spain; 22 June 2014 through 26 June 2014; Code 109290. European Conference on Composite Materials, ECCM..

Record type: Conference or Workshop Item (Paper)

Abstract

Pseudo-ductile metal-like tensile stress-strain responses with 700 MPa "yield stress" plateau and 4.0% failure strain have been achieved experimentally using thin-ply carbon epoxy prepreg and [+26n/0]S (n = 8 and 10) layups. Analysis of tested specimens has been conducted using microscopy and ultrasonic C-scan. These show that periodic fibre breakages in the 0° plies lead to local delaminations that propagate along the 0°/ - 26° interfaces. This gradual failure process of fragmentation and dispersed local delamination allows the demonstrated pseudo-ductile strains.

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More information

Published date: 22 June 2014
Keywords: carbon fibre, delamination, pseudo-ductility, thin ply, strain

Identifiers

Local EPrints ID: 446661
URI: http://eprints.soton.ac.uk/id/eprint/446661
PURE UUID: 05f85655-7bf0-44c2-87db-d1f457f42f27
ORCID for M. Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 17 Feb 2021 17:31
Last modified: 18 Feb 2021 17:42

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