Warm prestressing

Russia General rules of PNAE-G-7-008-89 None Primarily deterministic, but probabilistic can be used Semi-elliptical surface flaws up to ]i-Tdepth with length = %-7 initiation only with no safety factor on /Cic cladding effects considered no benefit for warm prestressing Pf < 1 x 10 Vreactor year, if used... [Pg.150]

France General rules of RCC-M, Appendix ZG None Deterministic Combination of flaw sizes and safety factors depending upon transient categories cladding effects considered no benefit of warm prestressing crack arrest allowed only for 4 category transients... [Pg.150]

Japan JEAC 4206 Simplified generic method of a comparison with Ktc curve Deterministic Size of semi-elliptic surface flaw approximately two times reliably detectable flaw depth with length six times the depth cladding effects to thermal analysis considered no benefit of warm prestressing... [Pg.150]

Harrison, T.C., Famehough, G.D. The influence of warm prestressing on the brittle fracture of structures containing sharp defects. Trans. Am. Soc. Mech. Engrs. 94(D), 373-386 (1972)... [Pg.650]

Loss F.J., Gray R.A. Jr., Hawtome J.R. Significance of warm prestressing to crack initiation during thermal shock. Naval Research Laboratory (1977)... [Pg.650]

McGowan J.J. An assessment of the beneficial effects of warm prestressing on the fracture properties of nuclear reactor vessels under severe thermal Shock. Westinghouse nuclear energy systems, WCAP-9178 (1978)... [Pg.650]

Stonesifer R.B., Rybicki E.F., McCabe D.E. Warm prestress modeling Comparison of models and experimental results. Material engineering associates, NUREG/CR-5208, MEA-2305 (1989)... [Pg.650]

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