A 3D voxel-based mesostructure generator for finite element modelling of tow-based discontinuous composites

Luis Gulfo; Olle Haglund Nilsson; Jacob Sjöberg; Ioannis Katsivalis; Leif E. Asp; Martin Fagerström

doi:10.1016/j.compositesb.2024.111405

A 3D voxel-based mesostructure generator for finite element modelling of tow-based discontinuous composites

Luis Gulfo, Olle Haglund Nilsson, Jacob Sjöberg, Ioannis Katsivalis, Leif E. Asp, Martin Fagerström

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

2 Citations (SciVal)

Abstract

Tow-based discontinuous composites manufactured with ultra-thin tapes display high stiffness, strength, and in-plane isotropy, thus competing with composite laminates. Their complex 3D microstructure affects the mechanical response, in turn demanding 3D generators that capture the tape waviness, resin pockets, and thickness and fibre content variations. The present work proposes an automated numerical framework combining a 3D voxel-based mesostructure generator with finite element models. A modified 3D random sequential absorption technique is developed with bin-guided allocation, draping, and thickness control. A statistical study is used to size the statistical volume elements and predict the elastic properties of thick, thin, and ultra-thin tow-based discontinuous composites. The results are compared with the experimental values from the literature. Despite uncertainties in physical tape properties, the resulting stiffnesses are predicted with good accuracy.

Original language	English
Article number	111405
Number of pages	12
Journal	Composites Part B: Engineering
Volume	278
Early online date	26 Mar 2024
DOIs	https://doi.org/10.1016/j.compositesb.2024.111405
Publication status	Published - 1 Jun 2024

Data Availability Statement

Data will be made available on request.

Acknowledgements

The Competence Centre TechForH2 is hosted by Chalmers University of Technology and is financially supported by the Swedish Energy Agency (P2021-90268) and the member companies Volvo, Scania, Siemens Energy, GKN Aerospace, PowerCell, Oxeon, RISE, Stena Rederier AB, Johnson Matthey and Insplorion.

Keywords

Discontinuous reinforcement
Finite element analysis
Mechanical properties
Mesostructural effects
Tow-based composite

ASJC Scopus subject areas

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

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Cite this

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abstract = "Tow-based discontinuous composites manufactured with ultra-thin tapes display high stiffness, strength, and in-plane isotropy, thus competing with composite laminates. Their complex 3D microstructure affects the mechanical response, in turn demanding 3D generators that capture the tape waviness, resin pockets, and thickness and fibre content variations. The present work proposes an automated numerical framework combining a 3D voxel-based mesostructure generator with finite element models. A modified 3D random sequential absorption technique is developed with bin-guided allocation, draping, and thickness control. A statistical study is used to size the statistical volume elements and predict the elastic properties of thick, thin, and ultra-thin tow-based discontinuous composites. The results are compared with the experimental values from the literature. Despite uncertainties in physical tape properties, the resulting stiffnesses are predicted with good accuracy.",

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AU - Gulfo, Luis

AU - Haglund Nilsson, Olle

AU - Sjöberg, Jacob

AU - Katsivalis, Ioannis

AU - Asp, Leif E.

AU - Fagerström, Martin

PY - 2024/6/1

Y1 - 2024/6/1

N2 - Tow-based discontinuous composites manufactured with ultra-thin tapes display high stiffness, strength, and in-plane isotropy, thus competing with composite laminates. Their complex 3D microstructure affects the mechanical response, in turn demanding 3D generators that capture the tape waviness, resin pockets, and thickness and fibre content variations. The present work proposes an automated numerical framework combining a 3D voxel-based mesostructure generator with finite element models. A modified 3D random sequential absorption technique is developed with bin-guided allocation, draping, and thickness control. A statistical study is used to size the statistical volume elements and predict the elastic properties of thick, thin, and ultra-thin tow-based discontinuous composites. The results are compared with the experimental values from the literature. Despite uncertainties in physical tape properties, the resulting stiffnesses are predicted with good accuracy.

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KW - Discontinuous reinforcement

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KW - Mechanical properties

KW - Mesostructural effects

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A 3D voxel-based mesostructure generator for finite element modelling of tow-based discontinuous composites

Abstract

Data Availability Statement

Acknowledgements

Keywords

ASJC Scopus subject areas

Access to Document

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