Tampere University of Technology

TUTCRIS Research Portal

Numerical modelling of rock materials with polygonal finite elements

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)216-219
Number of pages4
JournalRakenteiden mekaniikka
Issue number3
Publication statusPublished - 21 Aug 2017
Publication typeA1 Journal article-refereed


This article presents some preliminary results on numerical modeling of rock materials with polygonal finite elements. A method to describe the rock microstructure based on Voronoi diagrams, representing the rock grain texture, is sketched. In this method, the minerals constituting the rock are represented as Voronoi cells which themselves are polygonal finite elements. A three-point bending problem under plane stress linear elasticity condition is solved in order to compare the performance of polygonal elements to ordinary finite elements. Moreover, it is demonstrated by solving the stress state in uni-axial compression that the heterogeneity described with the present method results in short-range tensile stresses which could initiate mode-I cracks.

Publication forum classification

Field of science, Statistics Finland

Downloads statistics

No data available