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Data Publication
Discrete Element Method model data of biaxial shear deformation
van den Ende, Martijn
GFZ Data Services
(2018)
Owing to their destructive potential, earthquakes receive considerable attention from laboratory studies. In friction experiments, stick-slips are studied as the laboratory equivalent of natural earthquakes, and numerous attempts have been made to simulate stick-slips numerically using the Discrete Element Method (DEM). However, while laboratory stick-slips commonly exhibit regular stress drops and recurrence times, stick-slips generated in DEM simulations are highly irregular. This discrepancy highlights a gap in our understanding of stick-slip mechanics, which propagates into our understanding of earthquakes. In this work, we show that regular stick-slips emerge in DEM when time-dependent compaction by pressure solution is considered. We further show that the stress drop and recurrence time of stick-slips is directly controlled by the kinetics of pressure solution. Since compaction is known to operate in faults, this mechanism for frictional instabilities directly relates to natural seismicity. The zip-fle contains a Python script (render_figures.py) that is used to generate the data fgures as reported by Van den Ende & Niemeijer (2018), auxiliary script fles in the scripts directory, and the original model data in ASCII and HDF format in the data directory. The main Python script fle render_figures.py will read and process the original model data and generate the interactive data fgures. These fgures are automatically saved in PDF format. More information is given in Van den Ende & Niemeijer (2018) to which these data and scripts are supplementary material to.
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Source publisher
GFZ Data Services
DOI
10.5880/fidgeo.2018.008
Authors
van den Ende, Martijn
0000-0002-0634-7078
Utrecht University
References
van den Ende, M. P. A., & Niemeijer, A. R. (2018). Time‐Dependent Compaction as a Mechanism for Regular Stick‐Slips. Geophysical Research Letters, 45(12), 5959–5967. Portico. https://doi.org/10.1029/2018gl078103
10.1029/2018GL078103
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Contact
van den Ende, Martijn
martijnende@gmail.com
Utrecht University
Citiation
van den Ende, M. (2018). Discrete Element Method model data of biaxial shear deformation [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2018.008