Three-dimensional network model for coupling of fracture and mass transport in quasi-brittle geomaterials

Grassl, P. and Bolander, J. (2016) Three-dimensional network model for coupling of fracture and mass transport in quasi-brittle geomaterials. Materials, 9(9), 782. (doi:10.3390/ma9090782)

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Abstract

Dual three-dimensional networks of structural and transport elements were combined to model the effect of fracture on mass transport in quasi-brittle geomaterials. Element connectivity of the structural network, representing elasticity and fracture, was defined by the Delaunay tessellation of a random set of points. The connectivity of transport elements within the transport network was defined by the Voronoi tessellation of the same set of points. A new discretisation strategy for domain boundaries was developed to apply boundary conditions for the coupled analyses. The properties of transport elements were chosen to evolve with the crack opening values of neighbouring structural elements. Through benchmark comparisons involving non-stationary transport and fracture, the proposed dual network approach was shown to be objective with respect to element size and orientation.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Grassl, Dr Peter
Authors: Grassl, P., and Bolander, J.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Materials
ISSN:0254-0584
ISSN (Online):1996-1944
Published Online:19 September 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Materials 9(9):782
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
566601SAFE - a Systems Approach For Engineered BarriersPeter GrasslEngineering & Physical Sciences Research Council (EPSRC)EP/I036427/1ENG - ENGINEERING INFRASTRUCTURE & ENVIR