A non-coaxial and unbalanced plastic flow rule for geomaterials and its application to the shear band orientation prediction
文献类型：期刊论文
| 作者 | Kong, L. W.; Wang, G. S. |
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2011 |
| 卷号 | 35期号:6页码:668-693 |
| 关键词 | non-coaxial unbalanced plastic flow shear band geomaterial |
| ISSN号 | 0363-9061 |
| DOI | 10.1002/nag.918 |
| 英文摘要 | In this paper, the non-coaxial relation between the principal plastic strain increments and the principal stresses, which results from the internal friction in geomaterials, is analyzed, and the phenomenon of the unbalanced development of plastic flow in two conjugate directions is discussed. A non-coaxial, unbalanced plastic flow model for Coulomb frictional materials is developed and used to determine the orientation of shear band in geomaterials. It is shown that the unbalanced index r of plastic flow has important effect on the orientation of the shear band, and the orientation determined by the conventional plastic flow theory is only a special case of the proposed model when r = 0. This result soundly explains the reason that the geomaterials with the same internal friction angle and dilatancy angle can have very different shear band orientations. In addition, the difference between the intrinsic and apparent dilatancy angles is analyzed, and it is emphasized that the dilatancy angle commonly used in practice is indeed the apparent dilatancy angle. Copyright (C) 2010 John Wiley & Sons, Ltd. |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000289367700003 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3285]  |
| 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 | Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Kong, L. W.,Wang, G. S.. A non-coaxial and unbalanced plastic flow rule for geomaterials and its application to the shear band orientation prediction[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2011,35(6):668-693. |
| APA | Kong, L. W.,&Wang, G. S..(2011).A non-coaxial and unbalanced plastic flow rule for geomaterials and its application to the shear band orientation prediction.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,35(6),668-693. |
| MLA | Kong, L. W.,et al."A non-coaxial and unbalanced plastic flow rule for geomaterials and its application to the shear band orientation prediction".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 35.6(2011):668-693. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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