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Playing with DEM thanks to the above simulator
square
Domain
Domain
full
Mesh
Mesh
low
Fineness
Fineness
low
Stiffness
Stiffness
unbreakable
Joint limit
Joint limit
pause
Play/Pause
Play/Pause
Usage
By clicking on button you can customize your simulation :| Domain | changes the discrete domain shape |
| Mesh | changes the mesh shape |
| Fineness | changes the mesh fineneness |
| Stiffness | changes the bond stiffness |
| Joint limit | changes the breakable property of the bonds |
| Play/Pause | start or stop the simulation |
In addition, you can grab a discrete element (a sphere) with your mouse.
Comments
The simulator shows how the DEM method can be applied to deformable bodies. In the simulator, each circle corresponds to a discrete element. These discrete elements are bonded by springs and the whole assembly simulates a deformable body.
The bonds can be destroyed if they reach a given level of strain. It allows to simulate cracks initiation and propagation in the simulated material.
Note that if you change mesh shape, you change the mechanical behavior of the assembly. This property can be used to simulate anisotropic materials.