A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis
Joint Authors
Ma, Tiantian
Wei, Changfu
Sun, De'an
Tian, Huihui
Chen, Pan
Source
Journal of Applied Mathematics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-16
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Unlike its saturated counterparts, the mechanical behavior of an unsaturated soil depends not only upon its stress history but also upon its hydraulic history.
In this paper, a soil-water characteristic relationship which is capable of describing the effect of capillary hysteresis is introduced to characterize the influence of hydraulic history on the skeletal deformation.
The capillary hysteresis is viewed as a phenomenon associated with the internal structural rearrangements in unsaturated soils, which can be characterized by using a set of internal state variables.
It is shown that both capillary hysteresis and plastic deformation can be consistently addressed in a unified theoretical framework.
Within this context, a constitutive model of unsaturated soils is developed by generalizing the modified Cam-Clay model.
A hardening function is introduced, in which both the matric suction and the degree of saturation are explicitly included as hardening variables, so that the effect of hydraulic history on the mechanical response can be properly addressed.
The proposed model is capable of capturing the main features of the unsaturated soil behavior.
The new model has a hierarchical structure, and, depending upon application, it can describe the stress-strain relation and the soil-water characteristics in a coupled or uncoupled manner.
American Psychological Association (APA)
Ma, Tiantian& Wei, Changfu& Chen, Pan& Tian, Huihui& Sun, De'an. 2013. A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis. Journal of Applied Mathematics،Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-479590
Modern Language Association (MLA)
Ma, Tiantian…[et al.]. A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis. Journal of Applied Mathematics No. 2013 (2013), pp.1-15.
https://search.emarefa.net/detail/BIM-479590
American Medical Association (AMA)
Ma, Tiantian& Wei, Changfu& Chen, Pan& Tian, Huihui& Sun, De'an. A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis. Journal of Applied Mathematics. 2013. Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-479590
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479590