Naderi, S;
Zhang, M;
(2019)
An integrated framework for modelling virtual 3D irregulate particulate mesostructure.
Powder Technology
, 355
pp. 808-819.
10.1016/j.powtec.2019.07.089.
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Abstract
Many particulate composites show heterogenous mesoscopic structural behaviour due to a random distribution of irregular shaped particles with different sizes ranging from micro to macro scale. Accurate mesoscale models are required to represent actual geometric properties of such a composite with realistic features. In this paper, a cost-effective simulation framework is presented, which can virtually generate three-dimensional mesostructure models composed of irregulate particles with real characteristics. A MATLAB code is developed based on the Voronoi tessellation method and the splining technique. The hybrid Voronoi-spline algorithm can be programmed to control the shape and size of particles based on the experimental data. The examples demonstrated the proper adjustability of the models in accordance with the sieve analysis and shape parameters such as sphericity and roundness. The generated model as a triangulated geometry surface can be directly exported into computational analysis of materials, which uses other numerical techniques including finite element method.
| Type: | Article |
|---|---|
| Title: | An integrated framework for modelling virtual 3D irregulate particulate mesostructure |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.powtec.2019.07.089 |
| Publisher version: | https://doi.org/10.1016/j.powtec.2019.07.089 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Concrete; Geological particles; Aggregates; Voronoi tessellation; Finite element analysis |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10079438 |
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