A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state

Meisam Jalalvand; Mohammad Fotouhi; Mun Choong Leong; Michael R. Wisnom

A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state

Meisam Jalalvand^*, Mohammad Fotouhi, Mun Choong Leong, Michael R. Wisnom

^*Corresponding author for this work

Mechanical And Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

36 Downloads (Pure)

Abstract

A simple and accurate test method is presented to investigate the influence of shear stresses on tensile failure of unidirectional carbon fibre/epoxy. Glass/carbon hybrid laminates are used to eliminate stress concentrations and avoid premature failure at the end-tabs. Free-edge delamination is suppressed using thin-plies. Angle-ply carbon/epoxy laminates have been designed to achieve combinations of tensile and shear stresses. It is shown that in-plane shear does not significantly affect the fibre failure strains.

Original language	English
Number of pages	5
Publication status	Published - 25 Aug 2017
Event	21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China Duration: 20 Aug 2017 → 25 Aug 2017

Conference

Conference	21st International Conference on Composite Materials, ICCM 2017
Country/Territory	China
City	Xi'an
Period	20/08/17 → 25/08/17

Funding

This work was funded under the UK Engineering and Physical Sciences Research Council Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College London.

Keywords

combined stress state
failure criterion
fibre failure strain
testing method
multi-axial loads

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Jalalvand-etal-ICCM2017-novel-technique-accurately-measure-fibre-failure-strain-composite-laminates-under-combined-in-plane-tensionAccepted author manuscript, 302 KB

Cite this

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title = "A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state",

abstract = "A simple and accurate test method is presented to investigate the influence of shear stresses on tensile failure of unidirectional carbon fibre/epoxy. Glass/carbon hybrid laminates are used to eliminate stress concentrations and avoid premature failure at the end-tabs. Free-edge delamination is suppressed using thin-plies. Angle-ply carbon/epoxy laminates have been designed to achieve combinations of tensile and shear stresses. It is shown that in-plane shear does not significantly affect the fibre failure strains.",

keywords = "combined stress state, failure criterion, fibre failure strain, testing method, multi-axial loads",

author = "Meisam Jalalvand and Mohammad Fotouhi and Leong, \{Mun Choong\} and Wisnom, \{Michael R.\}",

year = "2017",

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note = "21st International Conference on Composite Materials, ICCM 2017 ; Conference date: 20-08-2017 Through 25-08-2017",

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A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state. / Jalalvand, Meisam; Fotouhi, Mohammad; Leong, Mun Choong et al.
2017. Paper presented at 21st International Conference on Composite Materials, ICCM 2017, Xi'an, China.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state

AU - Jalalvand, Meisam

AU - Fotouhi, Mohammad

AU - Leong, Mun Choong

AU - Wisnom, Michael R.

PY - 2017/8/25

Y1 - 2017/8/25

N2 - A simple and accurate test method is presented to investigate the influence of shear stresses on tensile failure of unidirectional carbon fibre/epoxy. Glass/carbon hybrid laminates are used to eliminate stress concentrations and avoid premature failure at the end-tabs. Free-edge delamination is suppressed using thin-plies. Angle-ply carbon/epoxy laminates have been designed to achieve combinations of tensile and shear stresses. It is shown that in-plane shear does not significantly affect the fibre failure strains.

AB - A simple and accurate test method is presented to investigate the influence of shear stresses on tensile failure of unidirectional carbon fibre/epoxy. Glass/carbon hybrid laminates are used to eliminate stress concentrations and avoid premature failure at the end-tabs. Free-edge delamination is suppressed using thin-plies. Angle-ply carbon/epoxy laminates have been designed to achieve combinations of tensile and shear stresses. It is shown that in-plane shear does not significantly affect the fibre failure strains.

KW - combined stress state

KW - failure criterion

KW - fibre failure strain

KW - testing method

KW - multi-axial loads

M3 - Paper

AN - SCOPUS:85053143103

T2 - 21st International Conference on Composite Materials, ICCM 2017

Y2 - 20 August 2017 through 25 August 2017

ER -

A novel technique to accurately measure the fibre failure strain in composite laminates under a combined in-plane tension and shear stress state

Abstract

Conference

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Keywords

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