HR: 0800h
AN: S21C-0713    [Abstracts]
TI: An Integrated Crustal Dynamics Simulator
AU: * Xing, H L
EM: h.xing@uq.edu.au
AF: The University of Queensland, Earth Systems Science Computational Centre, Sir James Foots Building (47A), UQ, St Lucia, Brisbane, QLD 4072, Australia
AU: Mora, P
EM: morap@esscc.uq.edu.au
AF: The University of Queensland, Earth Systems Science Computational Centre, Sir James Foots Building (47A), UQ, St Lucia, Brisbane, QLD 4072, Australia
AB: Numerical modelling offers an outstanding opportunity to gain an understanding of the crustal dynamics and complex crustal system behaviour. This presentation provides our long-term and ongoing effort on finite element based computational model and software development to simulate the interacting fault system for earthquake forecasting. A R-minimum strategy based finite-element computational model and software tool, PANDAS, for modelling 3-dimensional nonlinear frictional contact behaviour between multiple deformable bodies with the arbitrarily-shaped contact element strategy has been developed by the authors, which builds up a virtual laboratory to simulate interacting fault systems including crustal boundary conditions and various nonlinearities (e.g. from frictional contact, materials, geometry and thermal coupling). It has been successfully applied to large scale computing of the complex nonlinear phenomena in the non-continuum media involving the nonlinear frictional instability, multiple material properties and complex geometries on supercomputers, such as the South Australia (SA) interacting fault system, South California fault model and Sumatra subduction model. It has been also extended and to simulate the hot fractured rock (HFR) geothermal reservoir system in collaboration of Geodynamics Ltd which is constructing the first geothermal reservoir system in Australia and to model the tsunami generation induced by earthquakes. Both are supported by Australian Research Council.
DE: 7209 Earthquake dynamics (1242)
DE: 7290 Computational seismology
DE: 8164 Stresses: crust and lithosphere
SC: Seismology [S]
MN: 2007 Fall Meeting