Implicit scheme for integrating constitutive model of unsaturated soils with coupling hydraulic and mechanical behavior
文献类型：期刊论文
| 作者 | Ma, Tian-tian1; Wei, Chang-fu1,2; Chen, Pan1; Wei, Hou-zhen1 |
| 刊名 | APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
 |
| 出版日期 | 2014 |
| 卷号 | 35期号:9页码:1129-1154 |
| 关键词 | unsaturated soil capillary hysteresis elastoplastic coupling constitutive model stress integration finite-element method |
| ISSN号 | 0253-4827 |
| DOI | 10.1007/s10483-014-1859-6 |
| 英文摘要 | A constitutive model of unsaturated soils with coupling capillary hysteresis and skeleton deformation is developed and implemented in a fully coupled transient hydro-mechanical finite-element model (computer code U-DYSAC2). The obtained results are compared with experimental results, showing that the proposed constitutive model can simulate the main mechanical and hydraulic behavior of unsaturated soils in a unified framework. The non-linearity of the soil-water characteristic relation is treated in a similar way of elastoplasticity. Two constitutive relations are integrated by an implicit return-mapping scheme similar to that developed for saturated soils. A consistent tangential modulus is derived to preserve the asymptotic rate of the quadratic convergence of Newton's iteration. Combined with the integration of the constitutive model, a complete finite-element formulation of coupling hydro-mechanical problems for unsaturated soils is presented. A number of practical problems with different given initial and boundary conditions are analyzed to illustrate the performance and capabilities of the finite-element model. |
| WOS研究方向 | Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000341708100004 |
| 出版者 | SHANGHAI UNIV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3626]  |
| 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, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Guilin Univ Technol, Coll Civil & Architectural Engn |
| 推荐引用方式 GB/T 7714 | Ma, Tian-tian,Wei, Chang-fu,Chen, Pan,et al. Implicit scheme for integrating constitutive model of unsaturated soils with coupling hydraulic and mechanical behavior[J]. APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2014,35(9):1129-1154. |
| APA | Ma, Tian-tian,Wei, Chang-fu,Chen, Pan,&Wei, Hou-zhen.(2014).Implicit scheme for integrating constitutive model of unsaturated soils with coupling hydraulic and mechanical behavior.APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,35(9),1129-1154. |
| MLA | Ma, Tian-tian,et al."Implicit scheme for integrating constitutive model of unsaturated soils with coupling hydraulic and mechanical behavior".APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION 35.9(2014):1129-1154. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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