Using natural-neighbor-interpolation-based DDA method for elasto-plastic analysis of discrete block system111

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	Using natural-neighbor-interpolation-based DDA method for elasto-plastic analysis of discrete block system111
	Ma, Y. Z.1; Zheng, H.2
	2012
会议日期	DEC 06-08, 2011
会议地点	Honolulu, HI
页码	127-132
英文摘要	A new form of DDA method, which replaces traditional linear polynomial series with natural neighbor interpolants, is developed. In its numerical models, some mesh-free nodes need be distributed over each block' domain, then the Sibson natural neighbor interpolation is adopted. Moreover, the function of modeling block materials' elasto-plastic nonlinearity is developed. In each time step of computation, the blocks' stress fields are checked and adjusted to satisfy the assumed elasto-plastic constitutive models. To solve possible difficulties of computation convergence, controlling rational time step length or partly releasing rigid contact constraints are supposed.
源文献作者	Zhao, J ; Ohnishi, Y ; Zhao, GF ; Sasaki, T
会议录	ADVANCES IN DISCONTINUOUS NUMERICAL METHODS AND APPLICATIONS IN GEOMECHANICS AND GEOENGINEERING
会议录出版者	CRC PRESS-TAYLOR & FRANCIS GROUP
会议录出版地	BOCA RATON
语种	英语
WOS研究方向	Engineering ; Geology
WOS记录号	WOS:000329628600013
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4642]
专题	岩土力学所知识全产出_会议论文
作者单位	1.NingBo Univ Technol, Inst Civil Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Ma, Y. Z.,Zheng, H.. Using natural-neighbor-interpolation-based DDA method for elasto-plastic analysis of discrete block system111[C]. 见:. Honolulu, HI. DEC 06-08, 2011.