Determination of onset of failure of rocks in multiple failure state triaxial tests using scale-based differential geometry

Ulas Bagci*, Deniz Mamurekli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study presents a new method of estimating onset of failure points in multiple failure state triaxial tests of different rocks. This is done by extracting curvature landmarks and their invariant extensions using a scale-based differential geometry approach on the load-displacement curves. Altogether, the load-displacement data of 165 cored samples of different rocks including Norite, Granite, Limestone, Sandstone, Siltstone, Marble and Halite were used during this study. It has been proved that identifying invariant signatures/features of a load-displacement curve results in locating the onset of failure points with acceptable degree of accuracy.

Original languageEnglish (US)
Pages (from-to)55-78
Number of pages24
JournalArchives of Mining Sciences
Volume54
Issue number1
StatePublished - 2009
Externally publishedYes

Keywords

  • Load-displacement curve
  • Multiple failure state triaxial test
  • Scale-based geometry

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology

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