Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method

L. F. Varandas; D. Dalli; G. Catalanotti; B. G. Falzon

doi:10.1016/j.compositesa.2022.107141

Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method

L. F. Varandas^*, D. Dalli, G. Catalanotti, B. G. Falzon

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

A three-dimensional micromechanics framework is developed to estimate the mode I through-thickness intralaminar crack resistance curve of unidirectional carbon fibre-reinforced polymers. Finite element models of geometrically-scaled single edge notch tension specimens were generated. These were modelled following a combined micro-/meso-scale approach, where the region at the vicinity of the crack tip describes the microstructure of the material, while the regions far from the crack tip represent the mesoscopic linear-elastic behaviour of the composite. This work presents a novel methodology to estimate fracture properties of composite materials by combining computational micromechanics with the size effect method. The size effect law of the material, and consequently the crack resistance curve, are estimated through the numerically calculated peak stresses. In-depth parametric analyses, which are hard to conduct empirically, are undertaken, allowing for quantitative and qualitative comparisons to be successfully made with experimental and numerical observations taken from literature.

Original language	English
Article number	107141
Number of pages	16
Journal	Composites Part A: Applied Science and Manufacturing
Volume	162
Early online date	29 Aug 2022
DOIs	https://doi.org/10.1016/j.compositesa.2022.107141
Publication status	Published - Nov 2022
Externally published	Yes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support of the project ICONIC – Improving the crashworthiness of composite transportation structures . ICONIC has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 721256 . The content reflects only the author’s view and the Agency is not responsible for any use that may be made of the information it contains. The second author would also like to acknowledge the project TEMPEST (H2020-WF-2018-2020), which received funding from the European Union’s Horizon 2020 research and innovation programme under the grant agreement No 101038082 .

Funding Information:
The authors gratefully acknowledge the financial support of the project ICONIC – Improving the crashworthiness of composite transportation structures. ICONIC has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 721256. The content reflects only the author's view and the Agency is not responsible for any use that may be made of the information it contains. The second author would also like to acknowledge the project TEMPEST (H2020-WF-2018-2020), which received funding from the European Union's Horizon 2020 research and innovation programme under the grant agreement No 101038082.

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

B. Fracture toughness
C. Computational modelling
C. Micromechanics
Size effect method

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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Cite this

Varandas, L. F., Dalli, D., Catalanotti, G., & Falzon, B. G. (2022). Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method. Composites Part A: Applied Science and Manufacturing, 162, Article 107141. https://doi.org/10.1016/j.compositesa.2022.107141

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title = "Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method",

abstract = "A three-dimensional micromechanics framework is developed to estimate the mode I through-thickness intralaminar crack resistance curve of unidirectional carbon fibre-reinforced polymers. Finite element models of geometrically-scaled single edge notch tension specimens were generated. These were modelled following a combined micro-/meso-scale approach, where the region at the vicinity of the crack tip describes the microstructure of the material, while the regions far from the crack tip represent the mesoscopic linear-elastic behaviour of the composite. This work presents a novel methodology to estimate fracture properties of composite materials by combining computational micromechanics with the size effect method. The size effect law of the material, and consequently the crack resistance curve, are estimated through the numerically calculated peak stresses. In-depth parametric analyses, which are hard to conduct empirically, are undertaken, allowing for quantitative and qualitative comparisons to be successfully made with experimental and numerical observations taken from literature.",

keywords = "B. Fracture toughness, C. Computational modelling, C. Micromechanics, Size effect method",

author = "Varandas, {L. F.} and D. Dalli and G. Catalanotti and Falzon, {B. G.}",

note = "Funding Information: The authors gratefully acknowledge the financial support of the project ICONIC – Improving the crashworthiness of composite transportation structures . ICONIC has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No 721256 . The content reflects only the author{\textquoteright}s view and the Agency is not responsible for any use that may be made of the information it contains. The second author would also like to acknowledge the project TEMPEST (H2020-WF-2018-2020), which received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the grant agreement No 101038082 . Funding Information: The authors gratefully acknowledge the financial support of the project ICONIC – Improving the crashworthiness of composite transportation structures. ICONIC has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No 721256. The content reflects only the author's view and the Agency is not responsible for any use that may be made of the information it contains. The second author would also like to acknowledge the project TEMPEST (H2020-WF-2018-2020), which received funding from the European Union's Horizon 2020 research and innovation programme under the grant agreement No 101038082. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

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language = "English",

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Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method. / Varandas, L. F.; Dalli, D.; Catalanotti, G. et al.
In: Composites Part A: Applied Science and Manufacturing, Vol. 162, 107141, 11.2022.

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

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AU - Falzon, B. G.

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N2 - A three-dimensional micromechanics framework is developed to estimate the mode I through-thickness intralaminar crack resistance curve of unidirectional carbon fibre-reinforced polymers. Finite element models of geometrically-scaled single edge notch tension specimens were generated. These were modelled following a combined micro-/meso-scale approach, where the region at the vicinity of the crack tip describes the microstructure of the material, while the regions far from the crack tip represent the mesoscopic linear-elastic behaviour of the composite. This work presents a novel methodology to estimate fracture properties of composite materials by combining computational micromechanics with the size effect method. The size effect law of the material, and consequently the crack resistance curve, are estimated through the numerically calculated peak stresses. In-depth parametric analyses, which are hard to conduct empirically, are undertaken, allowing for quantitative and qualitative comparisons to be successfully made with experimental and numerical observations taken from literature.

AB - A three-dimensional micromechanics framework is developed to estimate the mode I through-thickness intralaminar crack resistance curve of unidirectional carbon fibre-reinforced polymers. Finite element models of geometrically-scaled single edge notch tension specimens were generated. These were modelled following a combined micro-/meso-scale approach, where the region at the vicinity of the crack tip describes the microstructure of the material, while the regions far from the crack tip represent the mesoscopic linear-elastic behaviour of the composite. This work presents a novel methodology to estimate fracture properties of composite materials by combining computational micromechanics with the size effect method. The size effect law of the material, and consequently the crack resistance curve, are estimated through the numerically calculated peak stresses. In-depth parametric analyses, which are hard to conduct empirically, are undertaken, allowing for quantitative and qualitative comparisons to be successfully made with experimental and numerical observations taken from literature.

KW - B. Fracture toughness

KW - C. Computational modelling

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AN - SCOPUS:85136712274

SN - 1359-835X

VL - 162

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 107141

ER -

Estimating the mode I through-thickness intralaminar R-curve of unidirectional carbon fibre-reinforced polymers using a micromechanics framework combined with the size effect method

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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