ASD Technical Report, Numéro 63,Parties 267 à 268

100 CREEP-RUPTURE CURVE 40 KSI STRESS 80 KSI STRESS Aeronautical Systems Division AIR AND VACUUM air atmosphere Air Each Point alloys ASTM Average Value combined Comparison of Creep Confidence Limits crack propagation creep deformation creep rates creep tests creep-damage Creep-Rupture Properties Curve of Specimens cyclic stress damage accumulation Directorate of Materials Failure Time Hr fatigue damage frequency grain grain-boundary HOURS 100 CREEP-RUPTURE HOURS 100 FIGURE HOURS FIGURE Interaction Surfaces KSI in Air KSI in Vacuum LIBRARIES THE OHIO Materials and Processes mean stress Measurements at 1250°F mechanism Metals micro-creep OHIO STATE UNIVERSITY Point is Average primary creep RATES IN AIR ratio reliability function Reliability Surface risk function Shahinian SPECIMENS WITH 40 Standard Deviation STRAIN ON LOADING stress amplitude surface cracks sustained stress tensile strength tensile tests tested in air thermal tion UNIVERSITY LIBRARIES Vacuum Each Point Vacuum Strain Measurements yield strength