Mixed complementary formulation of discontinuous deformation analysis and solution

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	Mixed complementary formulation of discontinuous deformation analysis and solution
	Jiang, W.1; Zheng, H.2
	2012
会议日期	OCT 17-21, 2011
会议地点	Beijing, PEOPLES R CHINA
关键词	numerical modeling rock failure stability analysis dynamics
页码	425-430
英文摘要	In the classical Discontinuous Deformation Analysis (DDA) the contact conditions are enforced through what is referred to as an open-close iteration scheme. The open-close iteration involves repeatedly fixing and removing the artificial springs between blocks in contact and thus falls into the category of test-and-error solution procedures that cannot assure the solution convergence. Meanwhile, improper stiffness parameters of the artificial springs might cause some numerical problems. In order to evade the introduction of the artificial parameters and to avoid the open-close iteration, this study reformulates the DDA as a mixed nonlinear complementary problem. Then, the Fisher-Burmeister Line Search Algorithm (FBLSA) is modified to solve the problem. Many examples including those originally designed by G.H. Shi have been analyzed, which prove the procedure is feasible.
源文献作者	Qian, Q ; Zhou, Y
会议录	HARMONISING ROCK ENGINEERING AND THE ENVIRONMENT
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
WOS记录号	WOS:000392521000065
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4645]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	1.China Three Gorges Univ, Minist Educ, Key Lab Geol Hazards Three Gorges Reservoir Area ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Jiang, W.,Zheng, H.. Mixed complementary formulation of discontinuous deformation analysis and solution[C]. 见:. Beijing, PEOPLES R CHINA. OCT 17-21, 2011.