Bounding Surface Constitutive Model for Cemented Sand under Monotonic Loading
Publication: International Journal of Geomechanics
Volume 16, Issue 2
Abstract
This paper presents a critical state constitutive model for cemented sand. The model uses a single capped yield surface as a function of the void ratio, confining pressure, preconsolidation pressure, and stress ratio at the peak of the undrained effective stress path. To model the cemented materials, the formulation of the yield function, elastic moduli, plastic modulus, flow rule, and other components of the model have been modified. Having incorporated the tensile strength and cohesion, the radial-mapping formulation of the bounding surface plasticity is incorporated in the model. The modified model has been calibrated and verified based on experimental results.
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Acknowledgments
The authors would like to acknowledge the research funding for this study provided by the National Sciences Engineering Research Council of Canada through a Collaborative Research Development program supported by BP Canada.
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Published In
International Journal of Geomechanics
Volume 16 • Issue 2 • April 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Apr 13, 2014
Accepted: Apr 7, 2015
Published online: Jun 30, 2015
Discussion open until: Nov 30, 2015
Published in print: Apr 1, 2016
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