Considering the computational effort, robustness, and accuracy of different parameters of adaptive wear scaling and nCode DesignLife for the fretting wear damage problems, keep in mind the following hints and recommendations:
Choose the element solution location to avoid peak values of the stress at the contact interfaces. Use the StressAndStrain entity data type to avoid dependence on the notch methods (Neuber, Hoffmann-Seeger, etc.).
Create an element component for the fast fretting fatigue life calculation.
Duty Cycle with time step loading and independent processing is appropriate for cyclic analysis. Repeat counts for each simulation cycle are obtained from the .cnd file for the scaled wear analysis.
The stress modification criterion gives a more conservative life estimation when including signed shear with SWT.
Including wear in fretting fatigue calculations prolongs the fretting life span of the components. The wear process must be included in the calibrating material parameters for a contact interface.
Set the maximum allowable wear scale factor for the wearing contact interface so that the wear scale factor changes gradually over each simulation cycle.
If the wear rate is not constant over a simulation cycle, choose a sufficiently small maximum allowable scale factor to maintain a constant wear scale factor over the simulation cycle.