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/).

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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  -