Issues with numerical simulation of core disking

S. T. Wilk, C. Fairhurst, J. F. Labuz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A challenge in rock mechanics is the determination of in-situ stresses in regions of high magnitude stress. In certain situations, core extraction results in damage in the form of core disking and researchers have attempted to relate the disk thickness to the in-situ stress state. This paper investigates the core disking phenomenon using FLAC, and it is shown that an appropriate constitutive relation must promote tensile failure in order to replicate the disking process for a wide range of stresses. Various issues that arise during the simulation are also addressed.

Original languageEnglish (US)
Title of host publication46th US Rock Mechanics / Geomechanics Symposium 2012
Pages751-757
Number of pages7
StatePublished - Dec 1 2012
Event46th US Rock Mechanics / Geomechanics Symposium 2012 - Chicago, IL, United States
Duration: Jun 24 2012Jun 27 2012

Publication series

Name46th US Rock Mechanics / Geomechanics Symposium 2012
Volume2

Other

Other46th US Rock Mechanics / Geomechanics Symposium 2012
CountryUnited States
CityChicago, IL
Period6/24/126/27/12

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