Something discrete for the weekend...Part II. downslope extension 2D simulation, assembly 5000x1250m, average radius c. 9m, c. 18,000 elements. Top part strong, frictional-cohesive, bottom section weak, frictionless. right end-wall moves downhill , a total of 1.25 km. Total Max. Shear strain

Something discrete for the weekend...Part I. downslope extension 2D simulation, assembly 5000x1250m, average radius c. 9m, c. 18,000 elements. Top part strong, frictional-cohesive, bottom section weak, frictionless. right end-wall moves downhill , a total of 1.25 km. Simple geometric evolution

Slope-collapse 2D discrete element simulation, 200x100m, av. element radius c. 0.75m. Bottom strong, frictional-cohesive, bedrock , top weak, frictionless. Equilibration, then slope "cut" and cover "responds". Movie, 2 parts... firstly geometry then total displacement magnitude for each element.

What happens if 2 "basement" faults active at same time but are not widely separated? Here is a 2D discrete element model of just such a scenario. Homogeneous frictional-cohesive cover, 2 faults active together and propagating into/deforming the cover. 2nd movie shows total max. shear strain.

What happens if 2 "basement" faults active at same time but are not widely separated? Here is a 2D discrete element model of just such a scenario. Homogeneous frictional-cohesive cover, 2 faults active together and propagating into/deforming the cover. First movie is just the geometry as it evolves.

Just a quick(-ish) movie to start the day part II, 2D discrete element model of 2 contractional faults affecting a frictional-cohesive cover, the brown/green layers are frictionless. This movie just shows total max. shear strain mapped to the elements

Just a quick(-ish) movie to start the day, 2D discrete element model of 2 contractional faults affecting a frictional-cohesive cover, the brown/green layers are frictionless. This movie just shows the simple geometric response. Next movie shows the same model but total xax. shear strain

Walking home, rather than taking the bus, opened my eyes to some interesting exposures along the way

2D discrete element model with 2 extensional faults active together. Faults dip at 30 deg, closely spaced to 1) test code's robustness, and 2) get some, hopefully, interesting faulting in the frictional-cohesive cover (synthetics, antithetics etc). Geometry then total max. shear strain ... "W" ?

todays salty movie, 2D discrete element modelling, all my own code

first post from Hardy Geoscience
:consulting in computational geoscience, application development, structural and stratigraphic modelling and high performance computing. A quick movie of the 2D discrete element simulations that I run, own code OpenMP, C/C++

#openmp #numericalmodeling