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DTD Handbook

Handbook for Damage Tolerant Design

  • DTDHandbook
    • About
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    • Sections
      • 1. Introduction
      • 2. Fundamentals of Damage Tolerance
        • 0. Fundamentals of Damage Tolerance
        • 1. Introduction to Damage Concepts and Behavior
        • 2. Fracture Mechanics Fundamentals
        • 3. Residual Strength Methodology
        • 4. Life Prediction Methodology
        • 5. Deterministic Versus Proabilistic Approaches
        • 6. Computer Codes
          • 0. Computer Codes
          • 1. Structural Analysis
          • 2. Life Prediction
            • 0. Life Prediction
            • 1. NASGRO Fracture Analysis Software
            • 2. AFGROW Fracture Analysis Software
            • 3. Cracks2000 Structural Integrity Software
          • 3. PRobability Of Fracture (PROF)
        • 7. Achieving Confidence in Life Prediction Methodology
        • 8. References
      • 3. Damage Size Characterizations
      • 4. Residual Strength
      • 5. Analysis Of Damage Growth
      • 6. Examples of Damage Tolerant Analyses
      • 7. Damage Tolerance Testing
      • 8. Force Management and Sustainment Engineering
      • 9. Structural Repairs
      • 10. Guidelines for Damage Tolerance Design and Fracture Control Planning
      • 11. Summary of Stress Intensity Factor Information
    • Examples

Section 2.6.2.2. AFGROW Fracture Analysis Software

The program can solve both constant amplitude and variable amplitude crack growth analysis problems, with the user choosing the stress intensity factor, the type of loading spectrum, the type of retardation model, and the type of crack growth rate behavior description.

Cracks2000 has fifty-one stress intensity factors solutions.  There are closed form equations for stress intensity factor solutions for 25 geometries.  Many of these solutions are the early Newman-Raju solutions, which are retained for comparisons with older analysis.  For the latest stress intensity factor solutions, tables of b-factors are generated from the equations;  the tables are used for the life analysis, and can be printed and plotted for b-factors comparison

Additional information on the Cracsk2000 software can be found at:

http://www.udri.udayton.edu/cracks/

or contact

Ms. Peggy C. Miedlar
University of Dayton Research Institute
300 College Park
Dayton, Ohio 45469-0120

Phone:            (937) 229-4417

email:            miedlar@udri.udayton.edu