An improved statistical damage constitutive model for warm frozen clay based on Mohr-Coulomb criterion
文献类型：期刊论文
| 作者 | Li, Shuangyang; Lai, Yuanming; Zhang, Shujuan; Liu, Deren |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 57期号:2-3页码:154-159 |
| 关键词 | Warm frozen clay Warm ice-rich frozen clay Statistical damage constitutive model Mohr-Coulomb criterion |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2009.02.010 |
| 通讯作者 | Li, Shuangyang(Li.Shuangyang@163.com) |
| 英文摘要 | There are many microdefects distributed randomly in frozen soil, which will lead to great uncertainty and randomness of mechanical properties and behaviors under applied load, therefore, it is more scientific to study stress-strain relationship of frozen soil by stochastic method instead of deterministic way. For the warm frozen clay and warm ice-rich frozen clay, a stochastic damage constitutive model has been proposed on the foundation of a large number of experimental data, in which the axial strain is regarded as random variable. In this paper, according to these experimental data under three temperature conditions (-0.5 degrees C, -1.5 degrees C and -2.0 degrees C) and the above research results, the strength of soil element is selected as random variable and an improved statistical damage constitutive model is deduced, and in this new model, the Mohr-Coulomb failure criterion is also used to judge whether the soil element is damaged. Finally, compared with original model, it is found that the new improved model can better describe the experimental data and reflect deformation characteristics. Especially, when the stress reaches its peak value, the experimental data and new theoretical curves overlap with each other. (C) 2009 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000267153300011 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556247 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, Shuangyang |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shuangyang,Lai, Yuanming,Zhang, Shujuan,et al. An improved statistical damage constitutive model for warm frozen clay based on Mohr-Coulomb criterion[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2009,57(2-3):154-159. |
| APA | Li, Shuangyang,Lai, Yuanming,Zhang, Shujuan,&Liu, Deren.(2009).An improved statistical damage constitutive model for warm frozen clay based on Mohr-Coulomb criterion.COLD REGIONS SCIENCE AND TECHNOLOGY,57(2-3),154-159. |
| MLA | Li, Shuangyang,et al."An improved statistical damage constitutive model for warm frozen clay based on Mohr-Coulomb criterion".COLD REGIONS SCIENCE AND TECHNOLOGY 57.2-3(2009):154-159. |
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来源：寒区旱区环境与工程研究所
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