Simulation of direct shear tests using a forces on fracture surfaces (FFS) approach
DOI: https://doi.org/10.1007/s12665-021-09606-6
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11135
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11135
Supplement: http://www.ufz.de/record/dmp/archive/7925, http://www.ufz.de/record/dmp/archive/7924, https://github.com/Poetschke/Ecodist
Frühwirt, Thomas; Pötschke, Daniel; Konietzky, Heinz, 2021: Simulation of direct shear tests using a forces on fracture surfaces (FFS) approach. In: Environmental Earth Sciences, Band 80, 8, DOI: 10.1007/s12665-021-09606-6.
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The aim of this work is to provide a complete data set of direct shear tests and to propose a corresponding simulation approach. Tests have been conducted on crystalline rock samples applying constant normal load (CNL) and constant normal stiffness (CNS) boundary conditions. A physical consistent algorithm which explicitly calculates the forces acting on the fracture surface (FFS) has been developed. This FFS approach can explain the occurrence of surface degradation and shows the main shear characteristics. After all, shearing of rough rock joints remains a complex process and the differences between laboratory and simulation results are still significant in some cases. All data and input files are provided free for download and testing.
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