MATERIALS-PROPERTY-DESIGN CRITERIA FOR METALS PART 8. THE CREEP BEHAVIOR OF SELECTED MATERIALS IN THE RANGE UP TO 1 PER CENT NET CREEP STRAIN AND 1000 HOURS

摘要

The objectives of this study were to compile and to evaluate creep strain versus time data on airframe structural materials. The range of interest, as recommended by the Elevated Temperature Task Group of-the ANC-5 Panel, includes creep strain up to 1 per cent and time up to 1000 hours. Only two reference sources dealt with creep of airframe structural materials within the conditions of strain and time imposed. Although both of these sources have considerably extended the knowledge of creep behavior in the early stages of creep, it appears that neither has encompassed adequately the regions of interest specified. Reasons for this conclusion are discussed in this report. It should be emphasized that for creep strain above about 1 per cent, both sources of data appear adequate.