NERVA reliability and safety analysis methods. Volume 4: Reliability testing, trend data and failure analysis (1972)
NON · leaf 28
. is estimated as in Paragraph 5.3.3.1.2, and S., the endurance limit of specimens of the material is estimated as that stress level, at and below which, ^11 specimens in the fatigue exoeriment were runouts. Using assumptions (14) and (15), ^aethods will be presented for obtaining estimates, f„(S)… … > Y Log cycle Life Estimated Mean by Cycle Life versus Stress, fY(S) and Lower Tolerance Boundary, L(S) Figure 2 L PAGE 12 OF 23
