Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method

doi:10.1360/04zze13

IMECH-IR > 力学所知识产出(1956-2008)

	Stochastic Structural Model of Rock and Soil Aggregates by Continuum-Based Discrete Element Method
	Wang YN; Zhao MH; Li SH(李世海); Wang JG; Li, SH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
发表期刊	Science in China Series E-Engineering & Materials Science
	2005
卷号	48 期号:suppl.页码:95-106
ISSN	1006-9321
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.
学科领域	力学
DOI	10.1360/04zze13
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000234924800009
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17010
专题	力学所知识产出(1956-2008)
通讯作者	Li, SH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
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,&Li, SH .(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.

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