中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉植物园
  3. 中国科学院武汉植物园
Work input for unsaturated soils considering interfacial effects

文献类型：期刊论文

作者Wei, Chang-Fu2; Li, Jian1; Fang, Qian1; Liu, Yan1; Zhao, Cheng-Gang1
刊名INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
出版日期2018-06-25
卷号42期号:9页码:1078-1094
关键词effective stress interfacial effects unsaturated soils work input
ISSN号0363-9061
DOI10.1002/nag.2784
英文摘要In this research, the interfacial energy is taken into account in the deformation work for unsaturated soils. Based on porous media theory, the thermodynamic balance equations for each phase and the interface are used to derive the work input for unsaturated soils. The work input equation serves as the basis and starting point for the choice of stress state variables, based on which the conjugate stresses and strain increments are derived. The influences of the interfaces on the effective stress and the constitutive law for the liquid phase are then discussed based on the work input equation. The effective stress can be expressed as Bishop's type, and the effective stress parameter is shown to be a function of both the degree of saturation and the interfacial area. The constitutive law for the liquid phase under dynamic condition is also presented. The relationship among interfacial area, saturation, and capillary pressure is proposed to calculate the value of the effective stress. Experimental data obtained from literature are used to validate the proposed model equations. Results show that our findings are in accordance with the existing research. Unlike the phenomenal study, our research has a rigorous theoretical basis, which lays a foundation for further research of unsaturated soils considering the interfacial effects.
资助项目National Natural Science Foundation of China[51678035] ; Fundamental Research Funds for the Central Universities[2016JBZ009]
WOS研究方向Engineering ; Materials Science ; Mechanics
语种英语
WOS记录号WOS:000434222300003
出版者WILEY
源URL[http://202.127.146.157/handle/2RYDP1HH/5437]  
专题中国科学院武汉植物园
通讯作者Liu, Yan
作者单位1.Beijing Jiaotong Univ, Sch Civil Engn, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Chang-Fu,Li, Jian,Fang, Qian,et al. Work input for unsaturated soils considering interfacial effects[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2018,42(9):1078-1094.
APA Wei, Chang-Fu,Li, Jian,Fang, Qian,Liu, Yan,&Zhao, Cheng-Gang.(2018).Work input for unsaturated soils considering interfacial effects.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,42(9),1078-1094.
MLA Wei, Chang-Fu,et al."Work input for unsaturated soils considering interfacial effects".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 42.9(2018):1078-1094.

入库方式： OAI收割

来源：武汉植物园

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。