Numerical modeling of normal wedge indentation in rocks

Branko Damjanac, Emmanuel M Detournay

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

5 Scopus citations

Abstract

This paper deals with the numerical modeling of the problem of wedge indentation into an elasto-plastic half-plane. It focuses on the initial regime of the indentation process (prior to the initiation of a tensile fracture), in which energy is solely dissipated in a diffuse mode. The main issues that need to be addressed in modeling such a problem are first discussed: preservation of self-similarity, accuracy, and computational efficiency. Then, a comparison between numerical and analytical results based on a cavity expansion model is presented. The numerical results are shown to support a major prediction of the cavity expansion model, namely that the indentation process is predominantly controlled by a single number 7, which is a function of the wedge angle, the un confined compressive strength of the rock, and its elastic modulus. Rock Mechanics Daemen & Schultz (eds).

Original languageEnglish (US)
Title of host publication35th U.S. Symposium on Rock Mechanics, USRMS 1995
Editors Daemen, Schultz
PublisherAmerican Rock Mechanics Association (ARMA)
Pages349-354
Number of pages6
ISBN (Print)9054105526, 9789054105527
StatePublished - Jan 1 1995
Event35th U.S. Symposium on Rock Mechanics, USRMS 1995 - Reno, United States
Duration: Jun 5 1995Jun 7 1995

Publication series

Name35th U.S. Symposium on Rock Mechanics, USRMS 1995

Other

Other35th U.S. Symposium on Rock Mechanics, USRMS 1995
Country/TerritoryUnited States
CityReno
Period6/5/956/7/95

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