Modelling damage in fibre-reinforced thermoplastic composite laminates subjected to three-point-bend loading

Haibao Liu, Jun Liu, Yuzhe Ding, Jin Zhou, Xiangshao Kong, Lee T. Harper, Bamber R. K. Blackman, Brian Falzon, John Dear*

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Downloads (Pure)

Abstract

It is important to account for nonlinearity in the deformation of a thermoplastic matrix, as well as fibre fracture and matrix cracking, when predicting progressive failure in unidirectional fibre-reinforced thermoplastic composites. In this research, a new high-fidelity damage model approach is developed incorporating elastic-plastic non-linearity. In order to validate the model, three-point bend experiments were performed on composite specimens, with a lay-up of [03/903]2s, to provide experimental results for comparison. Digital Image Correlation (DIC) was employed to record the strain distribution in the composite specimens. The developed intralaminar damage model, which is implemented as a user defined material (VUMAT in Abaqus/Explicit) subroutine, is then combined with a cohesive surface model to simulate three-point bend failure processes. The simulation results, including the load-displacement curves and damage morphology, are compared with the corresponding experimental results to assess the predictive capability of the developed model. Good agreement is achieved between the experimental and numerical results.
Original languageEnglish
JournalComposite Structures
Early online date09 Jan 2020
DOIs
Publication statusEarly online date - 09 Jan 2020

Fingerprint

Thermoplastics
Laminates
Fibers
Composite materials
Subroutines
Plastics
Experiments

Cite this

Liu, Haibao ; Liu, Jun ; Ding, Yuzhe ; Zhou, Jin ; Kong, Xiangshao ; Harper, Lee T. ; Blackman, Bamber R. K. ; Falzon, Brian ; Dear, John. / Modelling damage in fibre-reinforced thermoplastic composite laminates subjected to three-point-bend loading. In: Composite Structures. 2020.
@article{3815a863640f44078721691eb8332e53,
title = "Modelling damage in fibre-reinforced thermoplastic composite laminates subjected to three-point-bend loading",
abstract = "It is important to account for nonlinearity in the deformation of a thermoplastic matrix, as well as fibre fracture and matrix cracking, when predicting progressive failure in unidirectional fibre-reinforced thermoplastic composites. In this research, a new high-fidelity damage model approach is developed incorporating elastic-plastic non-linearity. In order to validate the model, three-point bend experiments were performed on composite specimens, with a lay-up of [03/903]2s, to provide experimental results for comparison. Digital Image Correlation (DIC) was employed to record the strain distribution in the composite specimens. The developed intralaminar damage model, which is implemented as a user defined material (VUMAT in Abaqus/Explicit) subroutine, is then combined with a cohesive surface model to simulate three-point bend failure processes. The simulation results, including the load-displacement curves and damage morphology, are compared with the corresponding experimental results to assess the predictive capability of the developed model. Good agreement is achieved between the experimental and numerical results.",
author = "Haibao Liu and Jun Liu and Yuzhe Ding and Jin Zhou and Xiangshao Kong and Harper, {Lee T.} and Blackman, {Bamber R. K.} and Brian Falzon and John Dear",
year = "2020",
month = "1",
day = "9",
doi = "10.1016/j.compstruct.2020.111889",
language = "English",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier",

}

Modelling damage in fibre-reinforced thermoplastic composite laminates subjected to three-point-bend loading. / Liu, Haibao; Liu, Jun; Ding, Yuzhe; Zhou, Jin; Kong, Xiangshao; Harper, Lee T.; Blackman, Bamber R. K. ; Falzon, Brian; Dear, John.

In: Composite Structures, 09.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Modelling damage in fibre-reinforced thermoplastic composite laminates subjected to three-point-bend loading

AU - Liu, Haibao

AU - Liu, Jun

AU - Ding, Yuzhe

AU - Zhou, Jin

AU - Kong, Xiangshao

AU - Harper, Lee T.

AU - Blackman, Bamber R. K.

AU - Falzon, Brian

AU - Dear, John

PY - 2020/1/9

Y1 - 2020/1/9

N2 - It is important to account for nonlinearity in the deformation of a thermoplastic matrix, as well as fibre fracture and matrix cracking, when predicting progressive failure in unidirectional fibre-reinforced thermoplastic composites. In this research, a new high-fidelity damage model approach is developed incorporating elastic-plastic non-linearity. In order to validate the model, three-point bend experiments were performed on composite specimens, with a lay-up of [03/903]2s, to provide experimental results for comparison. Digital Image Correlation (DIC) was employed to record the strain distribution in the composite specimens. The developed intralaminar damage model, which is implemented as a user defined material (VUMAT in Abaqus/Explicit) subroutine, is then combined with a cohesive surface model to simulate three-point bend failure processes. The simulation results, including the load-displacement curves and damage morphology, are compared with the corresponding experimental results to assess the predictive capability of the developed model. Good agreement is achieved between the experimental and numerical results.

AB - It is important to account for nonlinearity in the deformation of a thermoplastic matrix, as well as fibre fracture and matrix cracking, when predicting progressive failure in unidirectional fibre-reinforced thermoplastic composites. In this research, a new high-fidelity damage model approach is developed incorporating elastic-plastic non-linearity. In order to validate the model, three-point bend experiments were performed on composite specimens, with a lay-up of [03/903]2s, to provide experimental results for comparison. Digital Image Correlation (DIC) was employed to record the strain distribution in the composite specimens. The developed intralaminar damage model, which is implemented as a user defined material (VUMAT in Abaqus/Explicit) subroutine, is then combined with a cohesive surface model to simulate three-point bend failure processes. The simulation results, including the load-displacement curves and damage morphology, are compared with the corresponding experimental results to assess the predictive capability of the developed model. Good agreement is achieved between the experimental and numerical results.

U2 - 10.1016/j.compstruct.2020.111889

DO - 10.1016/j.compstruct.2020.111889

M3 - Article

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

ER -