G:\Government\Document Files\Handbook ... - Granta Design

MIL-HDBK-5H1 December 1998+ 0< &% =4 6 ! %3 '6 ! ' ! !Correlative Information for Figure 3.7.4.1.8(a)Product Form: 3/4-inch diam. drawn rod, 1-1/4-inch diam. rolled rod, and 1 x 7-1/2-inch bar, extruded 1-1/4-inchbar and 1-1/4-inch rodProperties: TUS, ksi TYS, ksiSpecimen Details:Temp.,F82 72 RTSurface Condition: UnspecifiedReference: 3.7.4.1.8UnnotchedMinimum diameter 0.200-inchTest Parameters:Loading - AxialFrequency - 30 HzTemperature - RTEnvironment - AirNo. of Heats/Lots: 8Equivalent Stress Equation:Log N f = 18.21-7.73 log (S eq -10)S eq = S max (1-R) 0.62R 2 = 81%Sample Size = 130[Caution: The equivalent stress model mayprovide unrealistic life predictions for stressratios beyond those represented above.]3-382