- Title
- Discrete modelling of hexagonal wire meshes with a stochastically distorted contact model
- Creator
- Thoeni, Klaus; Lambert, Cedric; Giacomini, Anna; Sloan, Scott W.
- Relation
- Computers and Geotechnics Vol. 49, p. 158-169
- Publisher Link
- http://dx.doi.org/10.1016/j.compgeo.2012.10.014
- Publisher
- Pergamon Press
- Resource Type
- journal article
- Date
- 2013
- Description
- This paper presents an improved discrete element model, which incorporates stochastically distorted contact mechanics, for the simulation of double-twisted hexagonal wire meshes that are commonly used in rockfall protection. First, the characteristics of such meshes are investigated by conducting quasi-static and dynamic experimental tests. Second, the discrete model for the simulation of such meshes is presented. A stochastically distorted contact model is introduced to account for distortions of the wires and hexagons, allowing a more realistic representation of the mechanical response of the mesh from the deformation point of view and the force point of view. Quasi-static tensile tests of a plane net sheet, subjected to a constant strain rate, are used to study the effect of the stochastically distorted contact formulation and to calibrate the numerical model. Finally, the dynamic response of an impacting block on a horizontal mesh sheet is used to compare the numerical predictions against experimental results in order to validate the proposed approach.
- Subject
- discrete element method (DEM); remote interaction; double-twisted hexagonal mesh; wire structure; rockfall protection; dynamic response
- Identifier
- http://hdl.handle.net/1959.13/1060886
- Identifier
- uon:16832
- Identifier
- ISSN:0266-352X
- Rights
- © 2013. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Language
- eng
- Full Text
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