Nonsmooth Granular Benchmarks
This repo contains the benchmarks used in
Kleinert, J. (2015) Simulating Granular Material using Nonsmooth Time-Stepping and a Matrix-free Interior Point Method. PhD thesis, Technische Universität Kaiserslautern
A free copy is available here.
The files are in VTK unstructured grid format. To visualize them using Paraview, create a Glyph of type Sphere, set the Scale Factor to 2 and choose radius as the Scale Array.
Test Problem 1
A pile with 2048 spherical particles with out rotational degrees of freedom.
File: particles2048pile.vtu
| Parameter | Value |
|---|---|
| Bounds X | [0, 10] |
| Bounds Y | [0, 10] |
| Bounds Z | [0, 10] |
| gravity | 10 m/s^2 |
| frictional coefficient | 0.4 |
| Normal stiffness | 50 GPa |
The radii and masses of the particles are contained in the .vtu file.
Test Problem 2
A pile with 5040 spherical particles with out rotational degrees of freedom.
File: particles5040pile.vtu
| Parameter | Value |
|---|---|
| Bounds X | [0, 10] |
| Bounds Y | [0, 10] |
| Bounds Z | [0, 10] |
| gravity | 10 m/s^2 |
| frictional coefficient | 0.4 |
| Normal stiffness | 50 GPa |
The radii and masses of the particles are contained in the .vtu file.
Test Problem 3
A pile with 10192 spherical particles with out rotational degrees of freedom.
File: particles10192pile.vtu
| Parameter | Value |
|---|---|
| Bounds X | [0, 10] |
| Bounds Y | [0, 10] |
| Bounds Z | [0, 10] |
| gravity | 10 m/s^2 |
| frictional coefficient | 0.4 |
| Normal stiffness | 50 GPa |
The radii and masses of the particles are contained in the .vtu file.
Test Problem 4
A trench filled with 105144 spherical particles with out rotational degrees of freedom. A rectangular blade is driven through the material at a depth of 0.2m and a constant velocity of 0.2 m/s.
File: trench_settle.vtu
| Parameter | Value |
|---|---|
| Bounds X | [0, 4] |
| Bounds Y | [0, 1] |
| Bounds Z | [0, 1] |
| gravity | 10 m/s^2 |
| frictional coefficient | 0.25 |
| Normal stiffness | 50 GPa |
| blade initial position | (-0.01, 0.5, 0.45) |
| blade constant velocity | (0.2, 0, 0) m/s |
The radii and masses of the particles are contained in the .vtu file.