SYMPOSIA PAPER Published: 01 January 1982
STP28858S

Experimental Evaluation of Initial Flaw Criticality and Analysis Methods for Damage Tolerant Air Force Aircraft

Source

This paper considers two aspects of the United States Air Force analytical and experimental damage tolerance design requirements for metallic airframes: the locations of initial damage and the accuracy of crack growth analysis. Following a summary of the requirements, an assessment is made of the validity of the initial continuing damage locations specified in the requirements. Guidelines are provided for selecting the initial primary damage location needed but not specified in the requirements. Analyses and test results are presented for typical aircraft structure (that is, chordwise splices, spanwise splices, stringer-reinforced continuous skin, 2-bay wing panels, etc.). The analytical and experimental results are correlated in order to assess the accuracy of the state-of-the-art analytical capability to satisfy the Air Force damage tolerance requirements.

Author Information

Rudd, JL
Air Force Wright Aeronautical Laboratories, Wright-Patterson Air Force Base, Ohio
Brussat, TR
Lockheed-California Company, Burbank, Calif.
Chiu, ST
Lockheed-California Company, Burbank, Calif.
Creager, M
Del West Engineering, Chatsworth, Calif.
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Details
Developed by Committee: E08
Pages: 152–171
DOI: 10.1520/STP28858S
ISBN-EB: 978-0-8031-4826-0
ISBN-13: 978-0-8031-0714-4