A new algorithm to generate representative volume elements of composites with cylindrical or spherical fillers

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Title: A new algorithm to generate representative volume elements of composites with cylindrical or spherical fillers
Author(s): Pathan, MV
Tagarielli, VL
Patsias, S
Baiz-Villafranca, PM
Item Type: Journal Article
Abstract: A new algorithm to generate random spatial distributions of cylindrical fibres and spheres is developed based on a constrained optimization formulation. All filler particles are generated simultaneously within the specimen domain; subsequently their position is iteratively perturbed to remove particle overlapping. The algorithm is able to achieve volume fractions of up to 0.8 in the case of circular cylindrical fibres of equal diameter; the method can be applied to any statistical distribution of fibre diameters. The spatial distribution of fibres and spheres is analysed by plotting spatial statistical metrics; it is shown that the microstructures generated are spatially random and similar to those observed in real fibre composites. The algorithm is employed to effectively predict the transversely isotropic elastic, damping and plastic properties of a unidirectional fibre composite by analysis of an RVE of smaller size than previously reported.
Publication Date: 9-Nov-2016
Date of Acceptance: 27-Oct-2016
URI: http://hdl.handle.net/10044/1/42970
DOI: http://dx.doi.org/10.1016/j.compositesb.2016.10.078
ISSN: 1359-8368
Publisher: Elsevier
Start Page: 267
End Page: 278
Journal / Book Title: Composites Part B - Engineering
Volume: 110
Copyright Statement: © 2016, Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Technology Strategy Board
Funder's Grant Number: 110123
Keywords: Materials
09 Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering

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