- Dynamic motion and interaction of assemblies of arbitrarily-sized particles are modeled
- Properties are associated with individual particles, allowing continuous gradations in properties and particle radii
- Double precision calculation ensures long-term freedom from numerical drift
- Contact physics consists of: linear springs or simplified Hertz-Mindlin law, Coulomb sliding, and contact or parallel bonding
- Clump logic supports creation of groups of slaved particles that may represent general shapes
- Any number of arbitrarily-oriented line segments or planar convex polygons may be specified as walls, each with its own contact properties
- General walls provide geometric objects such as cylinders, spirals, and cones; assemblies are loaded through prescribed wall velocities
- Automatic timestep calculation ensures stable solutions
- Cell-mapping scheme ensures that solution time increase only linearly with the number of particles
- Particles and walls may be added or deleted at any time during a simulation
- Two types of damping are available: local nonviscous and viscous
- Energy tracing allows tracking of: body work, bond energy, boundary work, frictional work, kinetic energy, and strain energy
- Measurements of average stress, strain rate and porosity can be made over any number of circular/spherical regions
- Any quantity may be traced with time, stored, and plotted
- A quasi-static operating mode is available (in addition to fully dynamic mode) for rapid convergence to steady-state solution
- Built-in programming language (FISH) provides powerful flexibility to customize analyses
- Explicit solution scheme simulates non-linear behavior without excessive memory requirements or the need for an iterative procedure
- Built-in contact models include: simple viscoelastic model, simple ductile model, displacement-softening model, hysteretic damping model, and Burger's creep model
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Balls with 3-10 mm uniform size distribution are filtered using general line walls by a 5Hz sinusoidal motion
Bucket elevator (investigation of discharge behavior) rendered using the Iv option
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