A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis
文献类型：期刊论文
| 作者 | Ma, Tiantian1; Wei, Changfu1,2; Chen, Pan1; Tian, Huihui1; Sun, De'an3 |
| 刊名 | JOURNAL OF APPLIED MATHEMATICS
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| 出版日期 | 2013 |
| 页码 | - |
| ISSN号 | 1110-757X |
| DOI | 10.1155/2013/537185 |
| 英文摘要 | 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. |
| WOS研究方向 | Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:000324985700001 |
| 出版者 | HINDAWI PUBLISHING CORPORATION |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3416]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Guilin Univ Technol, Coll Civil & Architectural Engn ; 3.Shanghai Univ, Dept Civil Engn |
| 推荐引用方式 GB/T 7714 | Ma, Tiantian,Wei, Changfu,Chen, Pan,et al. A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis[J]. JOURNAL OF APPLIED MATHEMATICS,2013:-. |
| 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,-. |
| MLA | Ma, Tiantian,et al."A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis".JOURNAL OF APPLIED MATHEMATICS (2013):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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