Novel stitching yarn for improved delamination performance of carbon fibre composites

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon fibre reinforced polymer composites are replacing metal where weight saving is required. Due to their laminate structure, one issue which is of concern is delamination. Sewing is seen as a simple method of improving the delamination performance, but as yet a suitable yarn does not seem to been identified. In this work, 4 thermoplastic yarns were created using polysulfone, polyethersulfone, polyphenylsulfone, polyetheretherketone and the mechanical properties (as a straight fibre, knotted fibre and looped fibres) compared to a commercial yarn from schappe. It was found that the commercial yarn had much better mechanical properties as a straight fibre compared to the thermoplastic yarns in both terms of stiffness and strength. It was found that the ultimate tensile strength of the commercial fibre was reduced by approximately 90% when knotted and by approximately 60% when looped compared to the straight fibre. The thermoplastic yarns did not show any significant change in performance. As a consequence, despite not having the same mechanical properties, the thermoplastic yarns may prove to be better suited to stitching.
LanguageEnglish
Title of host publicationUnknown Host Publication
Number of pages6
Publication statusAccepted/In press - 26 Jun 2016
EventECCM17 - 17th European Conference on Composite Materials - Munich, Germany,
Duration: 26 Jun 2016 → …

Conference

ConferenceECCM17 - 17th European Conference on Composite Materials
Period26/06/16 → …

Fingerprint

Delamination
Carbon fibers
Yarn
Composite materials
Thermoplastics
Fibers
Mechanical properties
Polysulfones
Laminates
Tensile strength
Stiffness
Polymers
Metals

Keywords

  • Sewing
  • carbon fibre reinforced polymer (CFRP)
  • delamination
  • thermoplastic yarn

Cite this

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title = "Novel stitching yarn for improved delamination performance of carbon fibre composites",
abstract = "Carbon fibre reinforced polymer composites are replacing metal where weight saving is required. Due to their laminate structure, one issue which is of concern is delamination. Sewing is seen as a simple method of improving the delamination performance, but as yet a suitable yarn does not seem to been identified. In this work, 4 thermoplastic yarns were created using polysulfone, polyethersulfone, polyphenylsulfone, polyetheretherketone and the mechanical properties (as a straight fibre, knotted fibre and looped fibres) compared to a commercial yarn from schappe. It was found that the commercial yarn had much better mechanical properties as a straight fibre compared to the thermoplastic yarns in both terms of stiffness and strength. It was found that the ultimate tensile strength of the commercial fibre was reduced by approximately 90{\%} when knotted and by approximately 60{\%} when looped compared to the straight fibre. The thermoplastic yarns did not show any significant change in performance. As a consequence, despite not having the same mechanical properties, the thermoplastic yarns may prove to be better suited to stitching.",
keywords = "Sewing, carbon fibre reinforced polymer (CFRP), delamination, thermoplastic yarn",
author = "Thomas Dooher and Cormac McGarrigle and D Dixon and Alistair McIlhagger and Eileen Harkin-Jones and Edward Archer",
year = "2016",
month = "6",
day = "26",
language = "English",
isbn = "978-3-00053387-7",
booktitle = "Unknown Host Publication",

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TY - GEN

T1 - Novel stitching yarn for improved delamination performance of carbon fibre composites

AU - Dooher, Thomas

AU - McGarrigle, Cormac

AU - Dixon, D

AU - McIlhagger, Alistair

AU - Harkin-Jones, Eileen

AU - Archer, Edward

PY - 2016/6/26

Y1 - 2016/6/26

N2 - Carbon fibre reinforced polymer composites are replacing metal where weight saving is required. Due to their laminate structure, one issue which is of concern is delamination. Sewing is seen as a simple method of improving the delamination performance, but as yet a suitable yarn does not seem to been identified. In this work, 4 thermoplastic yarns were created using polysulfone, polyethersulfone, polyphenylsulfone, polyetheretherketone and the mechanical properties (as a straight fibre, knotted fibre and looped fibres) compared to a commercial yarn from schappe. It was found that the commercial yarn had much better mechanical properties as a straight fibre compared to the thermoplastic yarns in both terms of stiffness and strength. It was found that the ultimate tensile strength of the commercial fibre was reduced by approximately 90% when knotted and by approximately 60% when looped compared to the straight fibre. The thermoplastic yarns did not show any significant change in performance. As a consequence, despite not having the same mechanical properties, the thermoplastic yarns may prove to be better suited to stitching.

AB - Carbon fibre reinforced polymer composites are replacing metal where weight saving is required. Due to their laminate structure, one issue which is of concern is delamination. Sewing is seen as a simple method of improving the delamination performance, but as yet a suitable yarn does not seem to been identified. In this work, 4 thermoplastic yarns were created using polysulfone, polyethersulfone, polyphenylsulfone, polyetheretherketone and the mechanical properties (as a straight fibre, knotted fibre and looped fibres) compared to a commercial yarn from schappe. It was found that the commercial yarn had much better mechanical properties as a straight fibre compared to the thermoplastic yarns in both terms of stiffness and strength. It was found that the ultimate tensile strength of the commercial fibre was reduced by approximately 90% when knotted and by approximately 60% when looped compared to the straight fibre. The thermoplastic yarns did not show any significant change in performance. As a consequence, despite not having the same mechanical properties, the thermoplastic yarns may prove to be better suited to stitching.

KW - Sewing

KW - carbon fibre reinforced polymer (CFRP)

KW - delamination

KW - thermoplastic yarn

M3 - Conference contribution

SN - 978-3-00053387-7

BT - Unknown Host Publication

ER -