DEMPack-tutorial-02.pdf

Tutorial 2: Rock Cutting Disc 3D Rock Cutting Disc This tutorial details the simulation of a process with granular non-cohesive material, concretely a Mill. Advanced and specific aspects should be clarified during training seminars using the present document as reference. Important aspects: - Wizard Interface - Element Types - Mesh Properties - Kinematic Conditions - Contacts - Mesh Generation - Output - Running the Simulation - Results Tutorial 2: Rock Cutting Disc 3D 2 Basic GiD colours criterion: ? Points: Black ? Lines: Blue ? Surfaces: Purple ? Volumes: Cyan ? Nodes: Black ? Elements: Green Previous GiD commands: 1. New GiD project 2. Open GiD project 3. Save GiD project 4. GiD preferences 5. Zoom in 6. Zoom out 7. Zoom frame 8. Redraw 9. Rotate trackball 10. Pan dynamic Attention: To accept the conditions assigned the user has to push the Esc button of the keyboard Graphical Preferences General Preferences Meshing Preferences Tutorial 2: Rock Cutting Disc 3D 3 Access to the wizard menu: 1. Open GiD 10 2. Select the Problem Type DEMPack v1.0 3. Select the case to simulate. 4. Select the dimension 1 . 5. Begin the problem simulation. Notes: 1. Rock Cutting Disc an Pick are only available in 3D 2. Once inside the wizard interface, there is a menu access available 3. Help button gives access to DEMPack User Manual 2 3 Tutorial 2: Rock Cutting Disc 3D 4 Notes: 1. To create more complex geometries use the GiD geometry toolbar 2. The geometry can be imported from CAD formats accepted by GiD (IGES, DXF…) 3. To create the lines, two points are needed 4. To create the surfaces, a closed line contour is needed 5. The geometric model can be imported using CAD formats accepted by GiD Basic tools to create the geometry 1,2 . Points Lines 3 Surfaces 4 Disc detail Geometry: Basic Available Tools – Normal’s Control Tutorial 2: Rock Cutting Disc 3D 5 Notes: 1. Bad Disc normal’s orientation 2. All normals should point to DEM material Geometry: Basic Available Tools