Naderi, S;
Zhang, M;
(2020)
A novel framework for modelling the 3D mesostructure of steel fibre reinforced concrete.
Computers and Structures
, 234
, Article 106251. 10.1016/j.compstruc.2020.106251.
Preview |
Text
Full_Manuscript.pdf - Accepted Version Download (3MB) | Preview |
Abstract
This paper presents a novel method for modelling the three-dimensional four-phase mesostructure of steel fibre reinforced concrete (SFRC) consisting of coarse aggregates, mortar, interfacial transition zone and fibres, which provides several advanced features. It enables constructing various types of short discrete fibre like straight, spiral and hooked-end fibres with one- or three-dimensional elements while configuring their sizes and orientations. A key aspect of the approach is the capability of generating realistic-shaped aggregates with size- and shape-adjustability among fibres in a stochastic domain based on the relation of Voronoi and Delaunay structures. The mesostructure model is a powerful simulation tool for characterisation of such heterogenous materials because of the strong structural controllability, the algorithm’s flexibility, the low computational cost and the productivity for many random samples in a statistical framework. To show the feasibility, the models were successfully implemented in a finite element case study to evaluate the elastic modulus of SFRC.
| Type: | Article |
|---|---|
| Title: | A novel framework for modelling the 3D mesostructure of steel fibre reinforced concrete |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.compstruc.2020.106251 |
| Publisher version: | https://doi.org/10.1016/j.compstruc.2020.106251 |
| 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: | Irregularly shaped aggregate; Interfacial transition zone; Fibre reinforcement; RVE; 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/10094851 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
