FATIGUE BEHAVIOR OF SHEET MATERIALS FOR THE SUPERSONIC TRANSPORT. VOLUME II. STATIC TEST DATA, S-N TEST DATA AND S-N DIAGRAMS
Abstract
Static and constant load amplitude fatigue test data were generated for 0.050 in. 8-1-1 titanium (duplex-annealed), 0.025 in PH14-8Mo (SRH 1050), and 0.025 in. INCO 718 (20% cold rolled and aged at 1275 F). Plain, center notched, and fusion welded specimens were tested at room temperature, 400 and 650 F. Specimens with no prior exposure, and specimens with prior exposure to a constant stress at 400 or 650 F for 100, 1000, or 5000 hours were tested. The constant stress during exposure of the titanium specimens was 25,000 psi and the corresponding stress for the steel and nickel base alloys was 40,000 psi. For convenience in the use of this basic information, the static and fatigue test data, plots of static strengths and elongation versus test temperature, S-N curves for test stress range ratios of R = 0.1 and R = - 0.5, and S-N diagrams derived from the curves are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0456001
Entities
People
- A. J. Mcculloch
- L. Young
- M. A. Melcon
Organizations
- Lockheed Martin