Modelling the longitudinal failure of fibre-reinforced composites at microscale

G. Catalanotti; L. F. Varandas; António R. Melro; T. A. Sebaey; M. A. Bessa; B. G. Falzon

doi:10.1016/B978-0-12-818984-9.00012-3

Modelling the longitudinal failure of fibre-reinforced composites at microscale

G. Catalanotti, L. F. Varandas, António R. Melro, T. A. Sebaey, M. A. Bessa, B. G. Falzon

Research output: Chapter in Book/Report/Conference proceeding › Chapter in a book

3 Citations (Scopus)

Abstract

A micromechanics framework for modelling the longitudinal failure of unidirectional fibre composites, in both tension and compression, is presented. Appropriate constitutive models are used for the different constituents (i.e., fibre and matrix) and interfaces. An algorithm for the generation of the fibre misalignment is reported. It combines a stochastic process with an optimization procedure in order to match the numerical and experimental misalignment angle distributions. Two alternative strategies could be used for the optimization procedure, based on the minimization of the standard error of the likelihood or probability, respectively, whose pros and cons are discussed. Finally, micromechanical modelling in tension and compression are reported, and the influence of the fibre misalignment angle distribution is assessed.

Original language	English
Title of host publication	Multi-Scale Continuum Mechanics Modelling of Fibre-Reinforced Polymer Composites
Publisher	Elsevier
Pages	349-378
Number of pages	30
ISBN (Electronic)	9780128189849
DOIs	https://doi.org/10.1016/B978-0-12-818984-9.00012-3
Publication status	Published - 1 Jan 2020

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Publisher Copyright:
© 2021 Elsevier Ltd.

Keywords

Computational micromechanics
Fibre kinking
Fibre waviness
Longitudinal failure
Polymer-matrix composites (PMCs)

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10.1016/B978-0-12-818984-9.00012-3

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abstract = "A micromechanics framework for modelling the longitudinal failure of unidirectional fibre composites, in both tension and compression, is presented. Appropriate constitutive models are used for the different constituents (i.e., fibre and matrix) and interfaces. An algorithm for the generation of the fibre misalignment is reported. It combines a stochastic process with an optimization procedure in order to match the numerical and experimental misalignment angle distributions. Two alternative strategies could be used for the optimization procedure, based on the minimization of the standard error of the likelihood or probability, respectively, whose pros and cons are discussed. Finally, micromechanical modelling in tension and compression are reported, and the influence of the fibre misalignment angle distribution is assessed.",

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T1 - Modelling the longitudinal failure of fibre-reinforced composites at microscale

AU - Catalanotti, G.

AU - Varandas, L. F.

AU - Melro, António R.

AU - Sebaey, T. A.

AU - Bessa, M. A.

AU - Falzon, B. G.

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N2 - A micromechanics framework for modelling the longitudinal failure of unidirectional fibre composites, in both tension and compression, is presented. Appropriate constitutive models are used for the different constituents (i.e., fibre and matrix) and interfaces. An algorithm for the generation of the fibre misalignment is reported. It combines a stochastic process with an optimization procedure in order to match the numerical and experimental misalignment angle distributions. Two alternative strategies could be used for the optimization procedure, based on the minimization of the standard error of the likelihood or probability, respectively, whose pros and cons are discussed. Finally, micromechanical modelling in tension and compression are reported, and the influence of the fibre misalignment angle distribution is assessed.

AB - A micromechanics framework for modelling the longitudinal failure of unidirectional fibre composites, in both tension and compression, is presented. Appropriate constitutive models are used for the different constituents (i.e., fibre and matrix) and interfaces. An algorithm for the generation of the fibre misalignment is reported. It combines a stochastic process with an optimization procedure in order to match the numerical and experimental misalignment angle distributions. Two alternative strategies could be used for the optimization procedure, based on the minimization of the standard error of the likelihood or probability, respectively, whose pros and cons are discussed. Finally, micromechanical modelling in tension and compression are reported, and the influence of the fibre misalignment angle distribution is assessed.

KW - Computational micromechanics

KW - Fibre kinking

KW - Fibre waviness

KW - Longitudinal failure

KW - Polymer-matrix composites (PMCs)

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M3 - Chapter in a book

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EP - 378

BT - Multi-Scale Continuum Mechanics Modelling of Fibre-Reinforced Polymer Composites

PB - Elsevier

ER -

Modelling the longitudinal failure of fibre-reinforced composites at microscale

Abstract

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