| Title |
A numerical approach for the design of multiscale fibre-reinforced cementitious composites |
| Authors |
MONTERO CHACÓN, FRANCISCO DE PAULA, Schlangen, Erik , Cifuentes, Hector , Medina, Fernando |
| External publication |
Si |
| Means |
Philos. Mag. |
| Scope |
Article |
| Nature |
Científica |
| JCR Quartile |
1 |
| SJR Quartile |
1 |
| JCR Impact |
1.63200 |
| SJR Impact |
0.88300 |
| Publication date |
23/10/2015 |
| ISI |
000364157500014 |
| DOI |
10.1080/14786435.2015.1040101 |
| Abstract |
In the present work, a numerical framework for the design of new multiscale fibre-reinforced cementitious composites is presented. This is accomplished by covering three different length scales, namely the micro-, meso- and macroscale. At the microscale (here defined as similar to 1mm), an enhanced fibre-reinforced lattice model is presented for the simulation of strain hardening cementitious composites. On the other hand, the analysis of fibre-reinforced concrete is performed at the mesoscale (similar to 10mm) by means of a novel lattice-particle model. The main variables in both models are the fibre dimensions (i.e. length and diameter), the fibre volume content and the fibre-matrix bond behaviour. Their contribution to the global mechanical properties is discussed in details. Finally, the structural characterisation of the fibre-reinforced cementitious composites (FRCC) is carried out by means of a hierarchical numerical homogenisation of the material behaviour, integrating the information obtained from lower scales into the macroscale problem (similar to 1m). The macroscopic response of the resulting material is characterised via three-point bending tests using a continuum damage plastic model. Although the described lattice models can be used independently as design tools in fibre cement-based composites at the micro- or mesoscale, the multiscale procedure described in this paper allows for the development of new types of FRCC by considering the effect of the multiple-scale fibre-reinforcement. |
| Keywords |
FRCC modelling; SHCC modelling; multi-fibre cementitious composites; multiscale analysis of FRCC |
| Universidad Loyola members |
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