Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method
文献类型：期刊论文
| 作者 | Wang YN; Zhao MH; Li SH(李世海) ; Wang JG
|
| 刊名 | Science in China Series E-Engineering & Materials Science
 |
| 出版日期 | 2005 |
| 卷号 | 48期号:suppl.页码:95-106 |
| 通讯作者邮箱 | shli@imech.ac.cn |
| ISSN号 | 1006-9321 |
| 通讯作者 | Li, SH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | This paper first presents a stochastic structural model to describe the random geometrical features of rock and soil aggregates. The stochastic structural model uses mixture ratio, rock size and rock shape to construct the microstructures of aggregates,and introduces two types of structural elements (block element and jointed element) and three types of material elements (rock element, soil element, and weaker jointed element)for this microstructure. Then, continuum-based discrete element method is used to study the deformation and failure mechanism of rock and soil aggregate through a series of loading tests. It is found that the stress-strain curve of rock and soil aggregates is nonlinear, and the failure is usually initialized from weaker jointed elements. Finally, some factors such as mixture ratio, rock size and rock shape are studied in detail. The numerical results are in good agreement with in situ test. Therefore, current model is effective for simulating the mechanical behaviors of rock and soil aggregates. |
| 学科主题 | 力学 |
| 类目[WOS] | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000234924800009 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/17010]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Wang YN,Zhao MH,Li SH,et al. Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method[J]. Science in China Series E-Engineering & Materials Science,2005,48(suppl.):95-106. |
| APA | Wang YN,Zhao MH,李世海,&Wang JG.(2005).Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method.Science in China Series E-Engineering & Materials Science,48(suppl.),95-106. |
| MLA | Wang YN,et al."Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method".Science in China Series E-Engineering & Materials Science 48.suppl.(2005):95-106. |
入库方式： OAI收割
来源：力学研究所
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