EFFECT OF LONG-TIME CREEP ON STRUCTURAL SHEET MATERIALS.
Abstract
The purpose of this investigation was to obtain data on the influence of prolonged exposure under stress at 550 F on the mechanical properties of AM350 sheet material. The experimental program was designed to furnish information for use in the evaluation of materials to be used in the construction of a Mach 3 transport airplane. The exposure stress of 67,000 psi was selected as representative of the most probable design stress for that type of airplane. Exposure times of 2000, 5000, 12,000 and 30,000 hours at 550 F have been provided by the experimental program to determine the effect of time of exposure n mechanical properties. A limited number of tests have been included in the program to evaluate the possibility of using higher temperature shorter duration exposures to predict changes in proper ties to be expected during a service life of 30,000 hours. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0418627
Entities
People
- J.w. Reeman
- T.m. Ullen
Organizations
- University of Michigan