A finite element and finite difference mixed approach for modeling fault rupture and ground motion
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Affiliation of Author(s):Massachusetts Institute of Technology
Journal:Computers and Geosciences
Funded by:MITei Founding Member Contract PT30193
Key Words:Induced earthquake; Finite element; Finite difference; Fault rupture; Ground motion
Abstract:We combine a finite element (FE) code, Defmod, and a finite difference (FD) code, OpenSWPC, in modeling fault
rupture and resulting ground motion. The rupturing process is modeled by the FE code, while the ground motion
is modeled by the FD code. The FE-FD binding follows two steps: First, evaluate the FD grid points motion when
executing the FE code; and then, impose those moving grid points to the FD domain to drive wave propagation. In
order to avoid performance bottleneck, we implement this FE-FD binding in parallel. To verify this mixed
approach, we evaluate two SCEC benchmark problems. T
First Author:Chunfang Meng
Indexed by:Unit Twenty Basic Research
Correspondence Author:Hua Wang
Discipline:Engineering
First-Level Discipline:Information and communication engineering
Volume:113
Page Number:54-69
Translation or Not:no
Date of Publication:2018-01-31