Journal article
Dual reciprocity boundary element based block model for discontinuous deformation analysis
Science China. Technological sciences, Vol.58(9), pp.1575-1586
11/08/2015
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Abstract
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.
Details
- Title
- Dual reciprocity boundary element based block model for discontinuous deformation analysis
- Creators
- GuoYang Fu - University of Western AustraliaGuoWei Ma - University of Western AustraliaXiaoLei Qu - University of Western Australia
- Publication Details
- Science China. Technological sciences, Vol.58(9), pp.1575-1586
- Publisher
- Science China Press; BEIJING
- Grant note
- This work was supported by the International Postgraduate Research Scholarship (IPRS), Australian Postgraduate Award (APA) sponsored by the Australian Government via the University of Western Australia, and the National Natural Science Foundation of China (Grant Nos. 41130751 & 51178012).
- Identifiers
- 991013291154802368
- Copyright
- © Science China Press and Springer-Verlag Berlin Heidelberg 2015
- Academic Unit
- Faculty of Science and Engineering; Engineering
- Language
- English
- Resource Type
- Journal article