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din9250
S-N Fatigue Curve — Notch Corrected (DIN 9250)
S-N fatigue curve for DIN 9250 serrated lock washers with tooth-root notch correction k_serr. Compares serrated vs. plain S-N curves; notch reduces fatigue limit by ~15-25%. N=10³~10⁷, log scale.
Standard Condition Curve
Curve variants across specs × materials. Register to view.
Standard Condition Curve
| Parameter | Value | Unit |
|---|---|---|
| k_serr | 1.8 | — |
| Material | C75S | — |
| tooth_count | 12 | — |