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Strain Localization Conditions Under True Triaxial Stress States

  • Kathleen A. IssenEmail author
  • Mathew D. Ingraham
  • Thomas A. Dewers
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG, volume 11)

Abstract

This work uses a bifurcation approach to develop theoretical predictions for deformation band formation for a suite of true triaxial tests on Castlegate sandstone. In particular, the influence of the intermediate principal stress on strain localization is examined. Using common simplifying assumptions (localization occurs at peak stress, and the failure surface is similar to the yield surface), theoretical predictions captured the overall trends observed experimentally. However, agreement between predicted and observed band orientations for individual specimens was varied. This highlights the importance of detailed data analyses to accurately determine key material parameter values at the inception of localization.

Keywords

Sandstone Bifurcation True triaxial compression Deformation band Theoretical predictions 

Notes

Acknowledgments

The authors gratefully acknowledge funding from the National Science Foundation Award EAR-0711346 to Clarkson University.

Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04–94AL85000.

References

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Kathleen A. Issen
    • 1
    Email author
  • Mathew D. Ingraham
    • 1
  • Thomas A. Dewers
    • 2
  1. 1.Clarkson UniversityPotsdamUSA
  2. 2.Sandia National LaboratoriesAlbuquerqueUSA

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