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2. U.S. Department of Defense Department of Defense Handbook: Engine Structural Integrity Program (ENSIP) (Arlington, VA: U.S. Department of Defense, 2004).
3. H. Kitagawa and S. Takahashi, “Applicability of Fracture Mechanics to Very Small Cracks or Cracks in the Early Stage,” in Second International Conference on Mechanical Behavior of Materials (Boston, MA: American Society for Metals, 1976), 627–631.
4. Standard Practice for Presentation of Constant Amplitude Fatigue Test Results for Metallic Materials (Superseded), ASTM E468-11 (West Conshohocken, PA: ASTM International, approved October 1, 2011), https://doi.org/10.1520/E0468-11
5. Standard Test Method for Measurement of Fatigue Crack Growth Rates (Superseded), ASTM E647-23 (West Conshohocken, PA: ASTM International, approved February 1, 2023), https://doi.org/10.1520/E0647-23