Abstract
This paper deals with numerical modelling of rock fracture under dynamic loading. For this end, an anisotropic viscodamage-viscoplasticity model for rock is developed. In the viscodamage part of the model, the Rankine criterion indicates the tensile stress states leading to rate-dependent anisotropic damaging. The anisotropy of damage is based on the compliance damage tensor given by the dyadic product of the gradient of the Rankine criterion with itself. In compression, the inelastic deformation and compressive strength degradation is governed by a Mohr-Coulomb viscoplasticity model. The model performance is first demonstrated at the material point level using a two-element model. Then, the
dynamic Brazilian disc test, involving both shear and tensile fracture types along
with strain rate hardening, on rock is simulated as a laboratory sample level problem.
dynamic Brazilian disc test, involving both shear and tensile fracture types along
with strain rate hardening, on rock is simulated as a laboratory sample level problem.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics |
| Editors | Emmanuel Gdoutos |
| Publisher | Springer |
| Pages | 68-73 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-3-319-91989-8 |
| ISBN (Print) | 978-3-319-91988-1 |
| DOIs | |
| Publication status | Published - 2018 |
| Publication type | A4 Article in conference proceedings |
| Event | International Conference on Theoretical, Applied, Experimental Mechanics - Duration: 1 Jan 2000 → … |
Publication series
| Name | Structural Integrity |
|---|---|
| Publisher | Springer International Publishing |
| Volume | 5 |
Conference
| Conference | International Conference on Theoretical, Applied, Experimental Mechanics |
|---|---|
| Period | 1/01/00 → … |
Publication forum classification
- Publication forum level 2