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An Elastoplastic Model for Coarse Grained Soils Obeying Lade's Dilatancy Rule

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Abstract:

This paper discussed the mechanism of dilatancy in coarse grained soils. Large-scale triaxial tests were also conducted to study the dilatancy law of coarse grained soils. Based on the results of the previous studies, it is found that plastic potential function proposed by Lade can fit the test results well. Lades dilatancy rule was then applied to a practical two-yield-surface model. Elastoplastic formula of the two-yield-surface model was also deduced in detail. The new model was verified with several groups of different materials. Results showed that this model could predict the behaviors of coarse grained soils well.

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Periodical:

Advanced Materials Research (Volumes 850-851)

Pages:

381-386

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.850-851.381

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Online since:

December 2013

Authors:

Jin Wang*, Jiao Na Li, Sheng Zhu

Keywords:

Coarse Grained Soils, Dilatancy Equation, Elastoplastic Formula, Large-Scale Tests, Two-Yield-Surface Model

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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