Mode-II interlaminar fracture investigation of novel shaped glass fibre composites

Alessandro Cannas; Ian Bond; Amir Rezai; Matteo Lusi

Mode-II interlaminar fracture investigation of novel shaped glass fibre composites

Alessandro Cannas^*, Ian Bond, Amir Rezai, Matteo Lusi

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

A study has been conducted to evaluate the benefits of using novel shaped fibre reinforcement to improve mode-II strain energy release rate of fibre reinforced polymer composites (FRP). Unidirectional and cross-ply laminates were manufactured using shaped and circular glass fibre reinforcement and tested using the end notched flexure (ENF) and end loaded split (ELS) geometries. Before testing, each specimen was pre-cracked using mode-I opening. The circular fibres were manufactured to have the same cross-sectional area as the shaped. The strain energy release rate for both crack initiation (G _{IICinitiation}) and propagation (G_{IICpropagation}) of all manufactured composites was calculated using Corrected Beam Theory (CBT) based on compliance calibration. Due to differences in resin and fibre volume fractions and fibre geometries, a correction factor was applied to the CBT expression to allow a fairer comparison. Results obtained have shown an increase of both G_{IICinitiation} and G_{IICpropagation} values for composites reinforced with shaped fibres.

Original language	English
Title of host publication	ICCM International Conferences on Composite Materials
Publication status	Published - 1 Dec 2007
Event	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, United Kingdom Duration: 8 Jul 2007 → 13 Jul 2007

Conference

Conference	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
Country/Territory	United Kingdom
City	Kyoto
Period	8/07/07 → 13/07/07

Keywords

Damage and fracture
Matrices and interfaces
Microstructure/properties
Shaped fibre
Strain energy release rate

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@inproceedings{58235b83ea16401090f54810b0e456ee,

title = "Mode-II interlaminar fracture investigation of novel shaped glass fibre composites",

abstract = "A study has been conducted to evaluate the benefits of using novel shaped fibre reinforcement to improve mode-II strain energy release rate of fibre reinforced polymer composites (FRP). Unidirectional and cross-ply laminates were manufactured using shaped and circular glass fibre reinforcement and tested using the end notched flexure (ENF) and end loaded split (ELS) geometries. Before testing, each specimen was pre-cracked using mode-I opening. The circular fibres were manufactured to have the same cross-sectional area as the shaped. The strain energy release rate for both crack initiation (G IICinitiation) and propagation (GIICpropagation) of all manufactured composites was calculated using Corrected Beam Theory (CBT) based on compliance calibration. Due to differences in resin and fibre volume fractions and fibre geometries, a correction factor was applied to the CBT expression to allow a fairer comparison. Results obtained have shown an increase of both GIICinitiation and GIICpropagation values for composites reinforced with shaped fibres.",

keywords = "Damage and fracture, Matrices and interfaces, Microstructure/properties, Shaped fibre, Strain energy release rate",

author = "Alessandro Cannas and Ian Bond and Amir Rezai and Matteo Lusi",

year = "2007",

month = dec,

day = "1",

language = "English",

isbn = "9784931136052",

booktitle = "ICCM International Conferences on Composite Materials",

note = "16th International Conference on Composite Materials, ICCM-16 - {"}A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace{"} ; Conference date: 08-07-2007 Through 13-07-2007",

}

TY - GEN

T1 - Mode-II interlaminar fracture investigation of novel shaped glass fibre composites

AU - Cannas, Alessandro

AU - Bond, Ian

AU - Rezai, Amir

AU - Lusi, Matteo

PY - 2007/12/1

Y1 - 2007/12/1

N2 - A study has been conducted to evaluate the benefits of using novel shaped fibre reinforcement to improve mode-II strain energy release rate of fibre reinforced polymer composites (FRP). Unidirectional and cross-ply laminates were manufactured using shaped and circular glass fibre reinforcement and tested using the end notched flexure (ENF) and end loaded split (ELS) geometries. Before testing, each specimen was pre-cracked using mode-I opening. The circular fibres were manufactured to have the same cross-sectional area as the shaped. The strain energy release rate for both crack initiation (G IICinitiation) and propagation (GIICpropagation) of all manufactured composites was calculated using Corrected Beam Theory (CBT) based on compliance calibration. Due to differences in resin and fibre volume fractions and fibre geometries, a correction factor was applied to the CBT expression to allow a fairer comparison. Results obtained have shown an increase of both GIICinitiation and GIICpropagation values for composites reinforced with shaped fibres.

AB - A study has been conducted to evaluate the benefits of using novel shaped fibre reinforcement to improve mode-II strain energy release rate of fibre reinforced polymer composites (FRP). Unidirectional and cross-ply laminates were manufactured using shaped and circular glass fibre reinforcement and tested using the end notched flexure (ENF) and end loaded split (ELS) geometries. Before testing, each specimen was pre-cracked using mode-I opening. The circular fibres were manufactured to have the same cross-sectional area as the shaped. The strain energy release rate for both crack initiation (G IICinitiation) and propagation (GIICpropagation) of all manufactured composites was calculated using Corrected Beam Theory (CBT) based on compliance calibration. Due to differences in resin and fibre volume fractions and fibre geometries, a correction factor was applied to the CBT expression to allow a fairer comparison. Results obtained have shown an increase of both GIICinitiation and GIICpropagation values for composites reinforced with shaped fibres.

KW - Damage and fracture

KW - Matrices and interfaces

KW - Microstructure/properties

KW - Shaped fibre

KW - Strain energy release rate

UR - http://www.scopus.com/inward/record.url?scp=79960069785&partnerID=8YFLogxK

M3 - Conference Contribution (Conference Proceeding)

SN - 9784931136052

BT - ICCM International Conferences on Composite Materials

T2 - 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"

Y2 - 8 July 2007 through 13 July 2007

ER -

Mode-II interlaminar fracture investigation of novel shaped glass fibre composites

Abstract

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Keywords

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