Discrete Element Analysis of Strike-Slip Surface Fault Rupture
Publication: Geo-Congress 2024
ABSTRACT
The discrete element method (DEM) is widely used in the fields of structural geology and tectonophysics to simulate the formation of fault-induced geologic features. With few exceptions, the vast majority of these simulations have focused on dip-slip fault rupture, with few exceptions of strike-slip fault rupture. Strike-slip fault rupture is particularly difficult to model with DEM, because 3D models often require millions of individual grains to capture the finest details of developing shear zones. Fortunately, high-performance computing makes this entirely possible. This study utilizes high-performance computing with DEM to simulate strike-slip fault rupture in dense and loose analogue soils. The results of the shear zones that develop during rupture are analyzed in plain view from above and from the side view to develop a comprehensive comparison with features observed in nature through post-earthquake reconnaissance activities.
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Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 10 - 19
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Computing in civil engineering
- Discrete element method
- Earthquake engineering
- Engineering fundamentals
- Geological faults
- Geology
- Geotechnical engineering
- Grain (material)
- Material mechanics
- Material properties
- Materials engineering
- Methodology (by type)
- Models (by type)
- Numerical methods
- Structural analysis
- Structural engineering
- Surface fault rupture
- Three-dimensional models
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