On yielding, failure, and softening response of rock

J. F. Labuz, R. Makhnenko, S. T. Dai, L. Biolzi

Research output: Chapter in Book/Report/Conference proceedingChapter


Mechanical descriptors of inelastic behavior of rock are reviewed and approaches to measure material and system response are highlighted. A non-traditional testing method that involves biaxial deformation developed through a Vardoulakis- Goldscheider plane strain apparatus is used to assess dilatancy and friction, as well as dilatancy of the shear band after localization. The Paul-Mohr-Coulomb failure criterion, which includes the intermediate stress, is applied to interpret the experiments at peak stress. Post-peak response, often referred to as softening, is explained as a size effect within the context of class I-class II stability.

Original languageEnglish (US)
Title of host publicationRock Mechanics and Engineering Volume 1
Subtitle of host publicationPrinciples
PublisherCRC Press
Number of pages14
ISBN (Electronic)9781315319612
ISBN (Print)9781138027596
StatePublished - Jan 1 2017

ASJC Scopus subject areas

  • General Engineering


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