NDLI: Asymptotic state behaviour and its modeling for saturated sand

Content Provider	Springer Nature Link
Author	Luo, Ting Yao, YangPing Chu, Jian
Copyright Year	2008
Abstract	A new double hardening elasto-plastic model is proposed in this paper based on the existing unified hardening model (UH model). By assuming that there is part coupling effect between the plastic volumetric strain and plastic shear strain, hardening parameters consisting of a coupled and an uncoupled components are adopted in this model. A unique feature of this model is that it can describe not only the conventional drained and undrained behaviors of soil, but also the stress-strain relationships of soil under partially drained conditions which can be volumetric compression or dilation. Adopting the asymptotic state concept, simple equations for estimating the limiting stress ratio under undrained or earth pressure at rest (i.e. K $_{0}$) conditions are derived. The new model is relatively simple to be adopted in practice for two reasons. First, the same soil parameters as in Cam-clay model are used except the addition of one extra parameter, the stress ratio at the characteristic state. Second, all the parameters can be determined using conventional triaxial compression tests.
Starting Page	2350
Ending Page	2358
Page Count	9
File Format	PDF
ISSN	10069321
Journal	Science in China Series E: Technological Sciences
Volume Number	52
Issue Number	8
e-ISSN	1862281X
Language	English
Publisher	SP Science in China Press
Publisher Date	2008-12-08
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	sand asymptotic state double hardening constitutive model partially coupled Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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