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Development of 2-D Hybrid FEM/DEM Method Code Using GPGPU


Fukuda, D and Liu, H and Mohammadnejad, M and Chan, A and Cho, SH and Min, GJ and Kodama, J and Yoshiaki, F, Development of 2-D Hybrid FEM/DEM Method Code Using GPGPU, Proceedings of 10th Asian Rock Mechanics Symposium, 29 October - 3 November 2018, Singapore, pp. 1-11. (2018) [Refereed Conference Paper]

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This paper introduces the Y-HFDEM code based on two-dimensional combined finite-discrete-element method (FEM/DEM) for numerical simulation of fracturing process in brittle and semi-brittle materials including rocks. The code has been successfully employed to simulate rock breakage under both quasi-static (e.g. uniaxial compression) and dynamic (e.g. rock blasting) loading conditions. However, the most challenging part in the application of the original Y-HFDEM code was its simulation time required to solve large-scale problems with massive number of nodes, elements and contact interactions. To overcome this limitation, this paper demonstrates the application of GPGPU (General Purpose Graphic Processing Unit) and CUDA (Compute Unified Device Architecture) C/C++ to parallelize the original sequential 2-D Y-HFDEM code along with related numerical algorithms using the GPGPU. Obtained results from verification examples demonstrate the capability of the proposed Y-HFDEM code in modelling larger scale problems in which massive computational effort is required.

Item Details

Item Type:Refereed Conference Paper
Keywords:Y-HFDEM, Combined FEM/DEM, GPGPU, Fracture process of rock
Research Division:Engineering
Research Group:Civil engineering
Research Field:Civil geotechnical engineering
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Fukuda, D (Dr Daisuke Fukuda)
UTAS Author:Liu, H (Dr Hong Liu)
UTAS Author:Mohammadnejad, M (Mr Mojtaba Mohammadnejad)
UTAS Author:Chan, A (Professor Andrew Chan)
ID Code:130613
Year Published:2018
Deposited By:Engineering
Deposited On:2019-02-06
Last Modified:2019-06-11
Downloads:1 View Download Statistics

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