Contents Print pageExpand/Collapse all1. Introduction to DEM2. Physical models in Rocky2.1. Contact force models2.1.1. Normal force models2.1.1.1. Hysteretic linear spring model2.1.1.2. Linear spring-dashpot model2.1.1.3. Hertzian spring-dashpot model2.1.2. Tangential force models2.1.2.1. Linear spring Coulomb limit model2.1.2.2. Coulomb limit model2.1.2.3. Mindlin-Deresiewicz model2.2. Adhesive force models2.2.1. Constant adhesive force model2.2.2. Linear adhesive force model2.2.3. JKR adhesive force model2.3. Rolling resistance models2.3.1. Type A: constant moment2.3.2. Type C: linear spring rolling limit2.4. Breakage models2.4.1. Impact Energy model2.4.2. Ab-T10 breakage model2.4.3. Tavares breakage model2.4.4. Breakage for large deformations2.4.5. Fragment size distribution models2.4.5.1. Gaudin-Schumann2.4.5.2. Incomplete beta function2.5. Wear model2.6. Thermal model2.6.1. Contact heat transfer rate2.6.2. Joint heat transfer rate2.6.3. Thermal conduction correction models2.7. Coarse-grain model2.7.1. Contact frictional forces2.7.2. Adhesive forces2.7.3. Contact heat transfer2.7.4. Radl et al. kinetic energy dissipation model3. Flexible particles in Rocky3.1. Flexible particle types3.1.1. Flexible fibers3.1.2. Flexible shells3.1.3. Flexible solid particles3.2. Joint models3.2.1. Linear elastic model3.2.2. Joint damping model3.2.3. Bilinear elastoplastic model3.2.3.1. Cycle with failure3.3. Element damping3.4. Joint breakage models3.4.1. Tensile stress criterion3.4.2. Shear stress criterion3.4.3. Tensile or shear stress criterion3.4.4. Von Mises stress criterion3.4.5. Griffith surface energy4. Statistics modules in Rocky4.1. Statistics types in Rocky4.1.1. Event-based statistics4.1.2. Integral-based statistics4.1.2.1. Works4.1.2.2. Impulses4.1.2.3. Frequency4.2. Collision statistics modules4.2.1. Boundary collision statistics4.2.1.1. Corrections when CGM is enabled4.2.1.2. Curves4.2.2. Intra-particle collision statistics4.2.3. Inter-particle collision statistics4.2.4. Inter-group collision statistics4.3. CFD coupling particle statistics4.4. Energy spectra modules4.4.1. Contacts energy spectra4.4.2. Particles energy spectra5. Miscellaneous Topics5.1. Contact detection5.2. Timestep calculations5.2.1. Timestep for the hysteretic linear spring model5.2.2. Timestep for the linear spring-dashpot model5.2.3. Timestep for the Hertzian spring-dashpot model5.2.4. Numerical softening factor5.3. Sieve size calculation5.4. Particle orientationBibliography Chapter 1: Introduction to DEM »