Geometrical modelling of 3D woven reinforcements for polymer composites: prediction of fabric permeability and composite mechanical properties

Zeng, Xuesen and Brown, Louise P. and Endruweit, Andreas and Matveev, Mikhail and Long, Andrew C. (2014) Geometrical modelling of 3D woven reinforcements for polymer composites: prediction of fabric permeability and composite mechanical properties. Composites Part A: Applied Science and Manufacturing, 56. pp. 150-160. ISSN 1359-835X

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Abstract

For a 3D orthogonal carbon fibre weave, geometrical parameters characterising the unit cell were quantified using micro-Computed Tomography and image analysis. Novel procedures for generation of unit cell models, reflecting systematic local variations in yarn paths and yarn cross-sections, and discretisation into voxels for numerical analysis were implemented in TexGen. Resin flow during reinforcement impregnation was simulated using Computational Fluid Dynamics to predict the in-plane permeability. With increasing degree of local refinement of the geometrical models, agreement of the predicted permeabilities with experimental data improved significantly. A significant effect of the binder configuration at the fabric surfaces on the permeability was observed. In-plane tensile properties of composites predicted using mechanical finite element analysis showed good quantitative agreement with experimental results. Accurate modelling of the fabric surface layers predicted a reduction of the composite strength, particularly in the direction of yarns with crimp caused by compression at binder cross-over points.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Access to submitted version in accordance with the copyright policy of the publisher.
Faculty / Department / School: No Faculty
Date Deposited: 09 Jun 2017 05:18
Last Modified: 12 Jul 2017 01:37
Uncontrolled Keywords: 3-Dimensional reinforcement; mechanical properties; numerical analysis; resin flow; 3-dimensional reinforcement; fabric permeability; geometrical modelling; in-plane permeability; in-plane tensile properties; microcomputed tomography; quantitative agreement; Materials Science; synthetic and natural fibers; textile technology; organic polymers
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.compositesa.2013.10.004
URI: http://eprints.usq.edu.au/id/eprint/31544

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