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Abstract

Combined finite-discrete element method has become one of the most powerful numericalmethods for modelling rock failure process in recent decades. However, most of studies focus on two-dimensional combined finite-discrete element modelling of the rock failure process. This paper further develops a hybrid finite-discrete element method proposed early by the authors for three-dimensional modelling of the rock failure processes in Brazilian tests and uniaxial compression test. The further developed three-dimensional hybrid finite-discrete element method is then parallelized using compute unified device architecture – based general purpose graphic processing unit parallel method to conduct a full-scale three-dimensional modelling of rock spalling failure process in the single Hopkinson pressure bar test. It is concluded that the three-dimensional hybrid finite-discrete element method provides a valuable numerical tools for modelling rock fracture and fragmentation and the parallelization makes it possible to be applied in the large-scale rock mass instability engineering application.

Item Type:	Conference or Workshop Item (Paper)
Authors/Creators:	Liu, HY and Mohammadnejad, M and Han, H and Chan, AHC
Keywords:	3D modelling, hybrid FEM-DEM, Rock fracture, fracture process, rock fragmentation
Journal or Publication Title:	Proceedings of 10th Asian Rock Mechanics Symposium
Publisher:	ISRM
Copyright Information:	Copyright unknown
Related URLs:	Google Scholar: Liu, HY UTAS Profile: Liu, HY Google Scholar: Chan, AHC UTAS Profile: Chan, AHC
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