Relative Wear
The Relative Wear model is a way of identifying regions of high impact (normal) and abrasive (tangential) wear on the equipment within a simulation. It is calculated based on the relative velocity and associated forces between the bulk material and the equipment. This model provides the user with data to indicate regions in which wear is taking place. Whilst it provides quantitative values for comparison between two or more design iterations, it does not determine an explicit material removal rate.
The four relative wear properties are Normal Cumulative Contact Energy, Tangential Cumulative Contact Energy, Normal Cumulative Force and Tangential Cumulative Force. Normal and Tangential Energy measure the cumulative energy due to material impacting and sliding respectively.
Where Vnis the normal relative velocity and is negative in a loading situation.
Where Vtis the tangential relative velocity.
when
 less than 0.svg)
and 
i.e. the Fnc is the cumulative peak forces of the different contacts occurring on a geometry element.
Note that the tangential cumulative force is dependent on the time step chosen. The smaller the time step, the bigger the cumulative force.
| Interaction | Configurable Parameters | Position |
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Particle to Particle |
None |
Last |
| Particle to Geometry |
Record Relative Wear (On / Off).
The Relative Wear model is a way of identifying regions of high impact (normal) and abrasive (tangential) wear on the equipment within a simulation. It is calculated based on the relative velocity and associated forces between the bulk material and the equipment. This model provides the user with additional data to indicate regions in which wear is taking place. Whilst it provides quantitative values for comparison between two or more design iterations, it does not determine an explicit material removal rate. |
Last |
Note: The Relative Wear model does not take into account the size of each element so a large variation in mesh sizing might produce unexpected or confusing results.