Numerical modeling of normal wedge indentation in rocks with lateral confinement

H. Huang, B. Damjanac, E. Detournay

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations


Results are presented of a numerical analysis conducted to investigate the influence of the lateral confining stress on the development of the plastic zone under the indenter and on the initiation of tensile fracture in normal wedge indentation. Theoretical and numerical analysis reveals that the indentation process is principally controlled by two numbers: a dimension-less group characterizing the material properties and tool geometry; by the ratio of the lateral confining stress over the uniaxial compressive strength. The results shed some light on the mechanism of formation of lateral or sub-horizontal tensile cracks observed in the indentation experiments.

Original languageEnglish (US)
Pages (from-to)613
Number of pages1
JournalInternational journal of rock mechanics and mining sciences & geomechanics abstracts
Issue number3-4
StatePublished - Apr 1997
EventProceedings of the 1997 36th US Rock Mechanics ISRM International Symposium - New York, NY, USA
Duration: Jun 29 1997Jul 2 1997

Bibliographical note

Funding Information:
The research reported in this paper has been supported by grant NSF/CMS-9612035 from the National Science Foundation. This support is gratefully acknowledged.


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