Modeling Liquefaction by a Multimechanism Model
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 134, Issue 7
Abstract
An anisotropic constitutive model was recently presented for describing the stress–strain behavior of granular materials with considerations for the initial and induced anisotropy. The model was developed within the framework of a microstructural theory known as the sliding–rolling theory. The resulting model falls within the definition of multimechanism models. The model was shown to satisfactorily represent the drained and undrained behaviors under monotonic loading. The framework used in the model allows extension to describe the behavior under cyclic loading, which is the subject of the present paper. Specifically, the model is further developed for representing the undrained behavior of granular materials under one- and two-way cyclic loading, some of which cause liquefaction resulting in large strain accumulations and the others lead to limited pore pressure and strain accumulations. The validity of the model is verified using triaxial data on Nevada sand.
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Acknowledgments
Yie-Ruey Chen, Dean of Academic Affairs, Chang Jung Christian University, Tainan, Taiwan, has kindly shared digital data from the report of Kutter et al. (1994).
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 134 • Issue 7 • July 2008
Pages: 949 - 959
Copyright
© 2008 ASCE.
History
Received: Jun 14, 2007
Accepted: Oct 24, 2007
Published online: Jul 1, 2008
Published in print: Jul 2008
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