| Symbol | KFσ |
|---|---|
| Unit | - |
| Attribute-ID | surface_roughness_factor_normal_stresses_fva321 |
| Numeric ID | 200908 |
| Value Type | PMDouble |
The roughness influence factor considers the effect that the fatigue strength tends to decrease as the surface roughness increases. The roughness influence factor for normal stress shown here is determined in accordance with DIN 743.