S-N Curve Analysis
Stress-life curve analysis for infinite life and finite life design assessment. Material-specific S-N data applied to cyclic stress ranges to predict component life under repeated loading.
- Endurance limit determination
- Stress range evaluation
- Goodman correction factors
- Design life verification
Weld Fatigue Analysis
Specialized fatigue evaluation of welded connections where stress concentration is critical. Accounts for weld defects, geometry, and material transitions to predict realistic service life.
- Weld toe stress concentration
- Hot spot stress analysis
- Defect tolerance assessment
- Multiaxial fatigue criteria
Cumulative Damage Assessment
Miner's rule and equivalent stress approaches for components experiencing variable amplitude loading. Realistic service life calculation for real-world loading histories.
- Miner's linear damage rule
- Rainflow cycle counting
- Variable amplitude loading
- Load sequence effects
Fatigue Testing Support
Specification of fatigue test programs to validate analysis predictions. Test protocols, acceptance criteria, and data interpretation supporting design qualification and certification.
- Test program design
- Loading profile specification
- Data analysis and correlation
- Test result validation
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