Aspherix®

ASPHERIX®

Particle Shapes

The correct representation of bulk materials depends on many factors, one of which is the particle shape. In many cases, spheres with additional physical properties (e.g., rolling friction) are a good choice, but often also nonspherical particles are used. Aspherix® offers a wide range of them, comprising multispheres, flexible, bonded particles, superquadrics (tablets, boxes, cylinders, …) and also triangulated objects.

aspherix

Triangulated

Simulation with A and X shaped particles in a rotating drum. The usage of concave particles allows for an accurate representation of the bulk material.

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Spheres

Description
Real convex shapes without inward facing components can be imported easily from 3D CAD files.

CATEGORY
Complex shapes
COMBINED WITH
SPH, FEA, MBD, Wear
C++ API
Yes

Multisphere

Description

Shape effect – multispheres vs spheres:

  • Simulation of hopper emptying – spheres vs. multispheres
  • LHS: polydisperse spherical particles (without rolling friction)
  • RHS: volume-equivalent non-spherical particles (shapes taken from laser-scanning of coke particles)
Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Fibers

Description

In Aspherix, fibers are modelled as multi-spheres bodies with elasto-damping interparticle forces (normal and tangential).

Rolling wheel on grass

In this video, the grass leaves, modelled as fibers, are bended by a rotating wheel. After being bent, the fibers tend to move to their original configuration due to the interparticle forces. 

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Bonded Particles

Bonded particles can be used to generate custom shapes like pellets, ellipsoids etc. The mechanical properties of the assemble depend on the bond breakage criterion, normal and tangential stiffness of the bonds, energy dissipation of the bonds and properties of the spherical particles.

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Flexible Membrane

This video shows a flexible membrane that consists of spherical particles. This is a specific application case of a cohesion model.

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Superquadrics

Filling and emptying of a cylinder with superquadric particles.

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Triangulated

Prismatic spouted bed – simulation with triangulated particles.

Vimeo

By loading the video, you agree to Vimeo's privacy policy.
Learn more

Load video

Register now for a free trial