Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

Jiraphant Srisuriyachot; Jean Bénézech; Guillaume Couégnat; Sophie a.m. Mcnair; Thomas Maierhofer; Richard Butler; Alexander j.g. Lunt

doi:10.1016/j.compositesb.2023.111038

Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

Jiraphant Srisuriyachot, Jean Bénézech, Guillaume Couégnat, Sophie a.m. Mcnair, Thomas Maierhofer, Richard Butler, Alexander j.g. Lunt

Research output: Contribution to journal › Article › peer-review

10 Citations (SciVal)

Abstract

This paper presents the first synchrotron micro-Computed Tomography (micro-CT) study on in-situ pure compressive kink-band failure in Uni-Directional Carbon Fibre-Reinforced Polymer composites (UD-CFRPs) with a notch. The study compares the failure behaviour of baseline samples under standard conditions with defect-rich samples containing micro-defects such as voids and fibre misalignment. Quantitative image-based analysis using the structure tensor technique and Digital Volume Correlation (DVC) reveals changes in fibre orientation and localised strain, respectively, at each increment load. A large 400
µm kink-band inclined at 30° with a half-cosine wave fibre orientation is observed in the baseline samples, while the defect-rich samples form narrower conjugate kink bands (ranging from 77 µm 25 µm) inclined at 45°. Development of kink-band formations/failure of both samples is discussed and compared with literature, providing key implications for the design and safe use of this type of composite layup.

Original language	English
Article number	111038
Number of pages	14
Journal	Composites Part B: Engineering
Volume	266
Early online date	10 Oct 2023
DOIs	https://doi.org/10.1016/j.compositesb.2023.111038
Publication status	Published - 1 Nov 2023

Bibliographical note

Funding Information:
This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom, Grant ‘Certification for Design - Reshaping the Testing Pyramid’ EP/S017038/1. Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom. The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2.

Funding Information:
This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom , Grant ‘Certification for Design - Reshaping the Testing Pyramid’ EP/S017038/1 . Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom . The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2.

Publisher Copyright:
© 2023 The Author(s)

Keywords

A. Carbon fibre
B. Defects
C. Micro-mechanics
D. Non-destructive testing
Kink-band formation

ASJC Scopus subject areas

Mechanics of Materials
Ceramics and Composites
Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.compositesb.2023.111038Licence: CC BY

https://linkinghub.elsevier.com/retrieve/pii/S1359836823005413Licence: CC BY

Cite this

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title = "Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects",

abstract = "This paper presents the first synchrotron micro-Computed Tomography (micro-CT) study on in-situ pure compressive kink-band failure in Uni-Directional Carbon Fibre-Reinforced Polymer composites (UD-CFRPs) with a notch. The study compares the failure behaviour of baseline samples under standard conditions with defect-rich samples containing micro-defects such as voids and fibre misalignment. Quantitative image-based analysis using the structure tensor technique and Digital Volume Correlation (DVC) reveals changes in fibre orientation and localised strain, respectively, at each increment load. A large 400 µm kink-band inclined at 30° with a half-cosine wave fibre orientation is observed in the baseline samples, while the defect-rich samples form narrower conjugate kink bands (ranging from 77 µm 25 µm) inclined at 45°. Development of kink-band formations/failure of both samples is discussed and compared with literature, providing key implications for the design and safe use of this type of composite layup.",

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author = "Jiraphant Srisuriyachot and Jean B{\'e}n{\'e}zech and Guillaume Cou{\'e}gnat and Mcnair, {Sophie a.m.} and Thomas Maierhofer and Richard Butler and Lunt, {Alexander j.g.}",

note = "Funding Information: This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom, Grant {\textquoteleft}Certification for Design - Reshaping the Testing Pyramid{\textquoteright} EP/S017038/1. Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom. The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2. Funding Information: This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom , Grant {\textquoteleft}Certification for Design - Reshaping the Testing Pyramid{\textquoteright} EP/S017038/1 . Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom . The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2. Publisher Copyright: {\textcopyright} 2023 The Author(s)",

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AU - Srisuriyachot, Jiraphant

AU - Bénézech, Jean

AU - Couégnat, Guillaume

AU - Mcnair, Sophie a.m.

AU - Maierhofer, Thomas

AU - Butler, Richard

AU - Lunt, Alexander j.g.

N1 - Funding Information: This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom, Grant ‘Certification for Design - Reshaping the Testing Pyramid’ EP/S017038/1. Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom. The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2. Funding Information: This work was supported by the UKRI - Engineering and Physical Sciences Research Council, United Kingdom , Grant ‘Certification for Design - Reshaping the Testing Pyramid’ EP/S017038/1 . Jiraphant Srisuriyachot is funded by GKN Aerospace, United Kingdom . The Diamond Light Source is acknowledged for providing the beamtime on I13-2 beamline under the experiment number MG28362-2. Publisher Copyright: © 2023 The Author(s)

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N2 - This paper presents the first synchrotron micro-Computed Tomography (micro-CT) study on in-situ pure compressive kink-band failure in Uni-Directional Carbon Fibre-Reinforced Polymer composites (UD-CFRPs) with a notch. The study compares the failure behaviour of baseline samples under standard conditions with defect-rich samples containing micro-defects such as voids and fibre misalignment. Quantitative image-based analysis using the structure tensor technique and Digital Volume Correlation (DVC) reveals changes in fibre orientation and localised strain, respectively, at each increment load. A large 400 µm kink-band inclined at 30° with a half-cosine wave fibre orientation is observed in the baseline samples, while the defect-rich samples form narrower conjugate kink bands (ranging from 77 µm 25 µm) inclined at 45°. Development of kink-band formations/failure of both samples is discussed and compared with literature, providing key implications for the design and safe use of this type of composite layup.

AB - This paper presents the first synchrotron micro-Computed Tomography (micro-CT) study on in-situ pure compressive kink-band failure in Uni-Directional Carbon Fibre-Reinforced Polymer composites (UD-CFRPs) with a notch. The study compares the failure behaviour of baseline samples under standard conditions with defect-rich samples containing micro-defects such as voids and fibre misalignment. Quantitative image-based analysis using the structure tensor technique and Digital Volume Correlation (DVC) reveals changes in fibre orientation and localised strain, respectively, at each increment load. A large 400 µm kink-band inclined at 30° with a half-cosine wave fibre orientation is observed in the baseline samples, while the defect-rich samples form narrower conjugate kink bands (ranging from 77 µm 25 µm) inclined at 45°. Development of kink-band formations/failure of both samples is discussed and compared with literature, providing key implications for the design and safe use of this type of composite layup.

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KW - B. Defects

KW - C. Micro-mechanics

KW - D. Non-destructive testing

KW - Kink-band formation

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U2 - 10.1016/j.compositesb.2023.111038

DO - 10.1016/j.compositesb.2023.111038

M3 - Article

SN - 1359-8368

VL - 266

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

M1 - 111038

ER -

Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Dataset for Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

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Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

Dataset for Synchrotron micro-CT in kink-band formation of UD-CFRP laminates with microdefects

Cite this