Numerical techniques based on the finite element scheme with discontinuity have been developed for problems involving aseismic ground deformation in seismically active locations. We stress the importance of numerical techniques like these in solving geodynamics problems. A lengthy strike-slip fault is investigated in a viscoelastic half space representing the lithosphereasthenosphere system. The fault moves abruptly under the impact of tectonic forces induced by mantle convection. The resulting boundary value problems were handled utilising a numerical technique based on a finite element scheme with correct boundary conditions that was created expressly for the task. Where analytical approaches become too complex, the numerical algorithms provided here can be adapted to handle more generic deformation situations. In the event that the tectonic forces are not anti-symmetric and the fault plane is not vertical, appropriate modifications can be made to our model.
Author(s) Details
Subhash Chandra Mondal
P.K.H.N. Mahavidyalaya, Department of Mathematics, Kanpur, Howrah-711410,
India
Suma Debsarma
Department of Applied Mathematics, University of Calcutta, 92, A. P. C.
Road, Kolkata-700009, India
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