Determination of asperity damage parameters for constitutive models of rock discontinuities

Michael E. Plesha*, Robert W. Hutson, Charles Dowding

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Dilatancy and contact surface damage are important phenomena affecting the behaviour of rock joints and other geological discontinuities. Effective constitutive laws that incorporate these behaviours have recently been developed but require the specification of new material parameters that govern damage of asperity surfaces. Determination of the parameters that control damage is currently a difficulty that confronts practitioners. This brief will summarize the findings of Hutson and Dowding's investigation of joint surface asperity degradation and elaborate on the implications for application.

Original languageEnglish (US)
Pages (from-to)289-294
Number of pages6
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Issue number4
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Computational Mechanics
  • Materials Science(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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