The occurrence of statistical size effect is considered for damage in creep conditions. The numerical and experimental analysis have been performed. The obtained results are ambiguous. Numerical models confirm the scale effect which can be statistical or deterministic one. But this effect has no experimental verification. It may suggest that the weakest link model cannot be applied in creep conditions. Explanation of this needs further investigations
REFERENCES(18)
1.
Bažant Z.P. (1984), Size Effect in Blunt Fracture: Concrete, Rock, Metal, J. Eng. Mech., 110, 518-535.
Carpinteri A., Spagnoli A., Vantadori S. (2002), An approach to size effect in fatigue of metals using fractal theories, Fatigue Fract.Engng. Mater. Struct., 25, 619-627.
Carpinteri A., Spagnoli A., Vantadori S. (2009), Size effect in S-N curves: A fractal approach to finite-life fatigue strength, Int. J. of Fatigue, 31, 927-933.
Carpinteri A., Spagnoli A., Vantadori S. (2010), A multifractal analysis of fatigue crack growth and its application to concrete, Eng.Fract. Mech., 77, 974-984.
Farris J.P., Lee J. D., Harlow D. G., Delph T.J. (1990), On the scatter in creep rupture times, Metallurgical and Materials Transactions, 21A, 345-352.
Garofalo F., Whitmore R.W., Domis W.F., Gemmingen F. (1961), Creep and creep-rupture relationships in an austenitic stainless steel, Trans. Metall. Soc. AIME, 221, 310-319.
Hayhurst D.R. (1974), The effects of test variables on scatter in high-temperature tensile creep-rupture data, International Journal of Mechanical Sciences, 16, 829-841.
Raabe D. (2002), Cellular Automata in Materials Science with Particular Reference to Recrystallization Simulation, Ann. Review of Materials Research, 32, 53-76.
Yatomi M., Nikbin K.M., O'Dowd N.P. (2003), Creep crack growth prediction using a damage based approach, International Journal of Pressure Vessels and Piping, 80, 573-583.
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