Abstract
Failure data from compression and extension testing of Dunnville sandstone and Webatuck dolomite were analyzed using three different criteria: Mohr-Coulomb, Hoek-Brown, and Paul-Mohr-Coulomb. An emphasis was placed on the details of the failure criteria under tensile-compressive loading conditions, which was possible due to a dog-bone specimen geometry. Tension cut-offs were implemented when using Mohr-Coulomb and Paul-Mohr-Coulomb due to unrealistic predictions of (theoretical) tensile strength. It was determined that under tensile-compressive loading conditions, a tension cut-off provided a better match than Hoek-Brown to the data for the two rock types examined. Hoek-Brown overestimates the uniaxial tensile strength by a factor between 2-3 and has the greatest overall least absolute residual error in the low mean stress region.
Original language | English (US) |
---|---|
Title of host publication | 51st US Rock Mechanics / Geomechanics Symposium 2017 |
Publisher | American Rock Mechanics Association (ARMA) |
Pages | 3292-3297 |
Number of pages | 6 |
ISBN (Electronic) | 9781510857582 |
State | Published - 2017 |
Event | 51st US Rock Mechanics / Geomechanics Symposium 2017 - San Francisco, United States Duration: Jun 25 2017 → Jun 28 2017 |
Publication series
Name | 51st US Rock Mechanics / Geomechanics Symposium 2017 |
---|---|
Volume | 5 |
Other
Other | 51st US Rock Mechanics / Geomechanics Symposium 2017 |
---|---|
Country/Territory | United States |
City | San Francisco |
Period | 6/25/17 → 6/28/17 |
Bibliographical note
Funding Information:ACKNOWLEDGEMENT: Partial support was provided by the MSES/Kersten Chair and the MSES Fellowship.
Publisher Copyright:
© 2017 ARMA, American Rock Mechanics Association.