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Further investigation of fatigue-crack propagation in aluminum-alloy box beams
- Author / Creator
- Available as
- Online
- Summary
-
Twenty-one box beams constructed according to nine designs were subjected to fatigue tests at one load level to study fatigue-crack propagation and accompanying stress redistribution. Six designs h...
Twenty-one box beams constructed according to nine designs were subjected to fatigue tests at one load level to study fatigue-crack propagation and accompanying stress redistribution. Six designs had stiffeners riveted to the skin, two had integrally stiffened covers, and one had stiffeners bonded to the skin. Specimens of each design were constructed of 7075 aluminum alloy. Additional specimens of some of the designs were constructed of 2024 aluminum alloy. The rate of crack propagation in specimens tie of 7075 material was more rapid than that in equivalent specimens made of 2024 material. Specimens with bonded stringers had lower rates of crack growth than any other specimens tested. The most rapid rates of crack growth were found in specimens having the smallest total stringer area and in specimens with integrally stiffened covers.
Details
- Creator
- by Herbert F. Hardrath and Herbert A. Leybold
- Format
- Books
- Language
- English
- Contributors
- Publication
-
- Washington : National Advisory Committee for Aeronautics, 1958
- Physical Details
-
- 1 online resource (23 pages) : illustrations, tables
- data file
- OCLC
- on1440237327
- Date of issue: June 1958.
- Report numbers NACA-TN-4246.
- "Langley Aeronautical Laboratory."
- Title from title screen (viewed June, 4, 2024)
- Includes bibliographical references (page 12)
- Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.