Study of Failure Criterion for Brittle Rocks Based on Ellipse Criterion
- DOI
- 10.2991/mmeceb-15.2016.172How to use a DOI?
- Keywords
- ellipse criterion,brittle rocks,failure criterion,rock mechanics.
- Abstract
When rock-like materials are tested under triaxial compression[1] ,two kinds of failure may happen,that is,ductile and brittle failures.The essential reason for rock failure is the relative displacement among mineral particles making up rock.Generally, rock failure can be either tensile or shear,which depends on the predominant mechanism when failure happen.Two distinct deformation mechanisms of shearing and volume dilatation are quantitatively analyzed in rock from the fundamental thermodynamics[2]. Their competition is deduced to intrinsically dominate the strength and failure behaviors of brittle rock. Both the intrinsic shear and normal strengths give rise to the critical mechanical energies to activate destabilization of amorphous structures, under pure shearing and volume dilatation, respectively, and can be determined in terms of elastic constants.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Chao Liu PY - 2015/12 DA - 2015/12 TI - Study of Failure Criterion for Brittle Rocks Based on Ellipse Criterion BT - Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology PB - Atlantis Press SP - 858 EP - 862 SN - 2352-5401 UR - https://doi.org/10.2991/mmeceb-15.2016.172 DO - 10.2991/mmeceb-15.2016.172 ID - Liu2015/12 ER -