Dual reciprocity boundary element based block model for discontinuous deformation analysis
This paper presents a further development of the dual reciprocity boundary element method(DRBEM)with stepwise updating to pave the way for the introduction of boundary element mesh into the discontinuous deformation analysis(DDA).The advantage of the proposed method lies in its adoption of static fundamental solutions and reduction in the size of the governing equations by transforming the inertial term domain integrals to boundary integrals in the dynamic large displacement analysis.The unconditionally stable Newmark-β time integration method involving numerical damping to enhance the numerical stability is implemented for the dynamic analysis.In order to be coupled with the DDA to improve the deformability of the DDA block domains,a stepwise updating algorithm of the system variables is introduced.The stress updating in the analysis involved in the calculation of a domain integral and internal cells are used for the integration of the initial stress term.Several examples are used to verify the geometry-updated DRBEM model and satisfactory results have been obtained.
GuoYang FU GuoWei MA XiaoLei QU
School of Civil, Environmental and Mining Engineering, University of Western Australia, Crawley WA,A School of Civil, Environmental and Mining Engineering, University of Western Australia, Crawley, Aus School of Civil, Environmental and Mining Engineering, University of Western Australia, Crawley WA,A
国际会议
The 12th International Conference on Analysis of Discontinuous Deformation(第12届非连续变形分析国际大会)
武汉
英文
24-24
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）