3D network modelling of fracture processes in fibre-reinforced geomaterials

Grassl, P. and Antonelli, A. (2019) 3D network modelling of fracture processes in fibre-reinforced geomaterials. International Journal of Solids and Structures, 156-57, pp. 234-242. (doi:10.1016/j.ijsolstr.2018.08.019)

[img]
Preview
Text
168217.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

3MB

Abstract

The width of fracture process zones in geomaterials is commonly assumed to depend on the type of heterogeneity of the material. Still, very few techniques exist, which link the type of heterogeneity to the width of the fracture process zone. Here, fracture processes in geomaterials are numerically investigated with structural network approaches, whereby the heterogeneity in the form of large aggregates and low volume fibres is modelled geometrically as poly-dispersed ellipsoids and mono-dispersed line segments, respectively. The influence of aggregates, fibres and combinations of both on fracture processes in direct tensile tests of periodic cells is investigated. For all studied heterogeneities, the fracture process zone localises at the start of the softening regime into a rough fracture. For aggregates, the width of the fracture process zone is greater than for analyses without aggregates. Fibres also increase the initial width of the fracture process zone and, in addition, result in a widening of this zone due to fibre pull out.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Grassl, Dr Peter and Antonelli, Mr Adrien
Authors: Grassl, P., and Antonelli, A.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:International Journal of Solids and Structures
Publisher:Elsevier
ISSN:0020-7683
ISSN (Online):1879-2146
Published Online:24 August 2018
Copyright Holders:Copyright © 2018 Elsevier Ltd.
First Published:First published in International Journal of Solids and Structures 156-157: 234-242
Publisher Policy:Reproduced in accordance with the publisher copyright policy

University Staff: Request a correction | Enlighten Editors: Update this record