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) (PMID:28773902) (PMCID:PMC5457050)
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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 |
| Publisher: | MDPI |
| 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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