User guide

The scope of this user guide is guiding the user towards a comprehensive understanding of py-fatigue through as many usage examples as possible.

User guide

• 1. Set up a notebook running py-fatigue
• 2. SN curve
  • a. Multiple SN curves
  • b. SN curves methods
  • c. SN curve interpolation
• 3. Crack growth curve
  • a. Definition of multiple Paris’ laws
  • b. Mean stress effect on Paris’ law
  • c. Paris’ law curve interpolation
• 4. CycleCount definition
  • a. Constant fatigue load
  • b. Weibull-distributed signal
• 5. CycleCount sum
  • a. List of signals (timeseries)
• 6. Mean stress effect
  • DNVGL-RP-C203 correction
  • Walker correction
  • Smith-Watson-Topper
  • a. Constant signal
  • b. Normally-distributed signal
    • DNVGL-RP-C203 mean stress effect correction
    • Walker mean stress effect correction
• 7. Stress-Life damage calculation
  • 1. Palmgren-Miner
    • a. Constant fatigue load (sinoid)