A SYNTHESIS OF CRACK GROWTH THEORIES IN FATIGUE INTO SOME STATISTICAL DISTRIBUTIONS OF FATIGUE LIFE

The proposed model for fatigue life is a synthesis of the distributional properties of three separate phases of fatigue crack growth. The convolved distribution of life contains three estimable parameters and a function disposable within a restricted class. The problem of estimating all three parameters using the method of maximum likelihood is examined and shown to be impossible of solution in certain cases. This indicates that one of the parameters must be determined a priori from concepts of strength of materials or fracture mechanics.

• Corporate Authors:

  Washington State University, Pullman

  Department of Pure and Applied Mathematics
  Pullman, WA  United States  99163
• Authors:
  • Saunders, S C
• Publication Date: 1975-6

Media Info

• Pagination: 60 p.

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Mechanical fatigue; Stresses
• Uncontrolled Terms: Crack propagation; Fatigue life
• Old TRIS Terms: Crack stresses
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00128208
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: ARL-75-0178 Intrm Rpt.
• Contract Numbers: F33615-73-C-4016
• Files: TRIS
• Created Date: Dec 16 1975 12:00AM