DEPENDENCE OF CREEP FAILURE PROBABILITY ON THE SIZE OF METALLIC SPECIMENS

Nowak, Krzysztof

doi:10.2478/ama-2013-0028

Abstract

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

1. Bažant Z.P. (1984), Size Effect in Blunt Fracture: Concrete, Rock, Metal, J. Eng. Mech., 110, 518-535.
Search in Google Scholar
2. Bažant Z.P. (1999), Size effect on structural strength: a review, Archive of Applied Mechanics, 69, 703-725.10.1007/s004190050252
Search in Google Scholar
3. Bodnar, A., Chrzanowski, M. (2002), On creep rupture of rectangular plates, ZAMM, 82, 201-205.10.1002/1521-4001(200203)82:3<;201::AID-ZAMM201>3.0.CO;2-G
Search in Google Scholar
4. Carpinteri A., Spagnoli A. (2004), A fractal analysis of size effect on fatigue crack growth, Int. J. of Fatigue, 26, 125-133.10.1016/S0142-1123(03)00142-7
Search in Google Scholar
5. 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.
Search in Google Scholar
6. 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, 927-933.10.1016/j.ijfatigue.2008.10.001
Search in Google Scholar
7. 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.
Search in Google Scholar
8. Chrzanowski M. (1972), On the Possibility of Describing the Complete Process of Metallic Creep, Bull. Ac. Pol. Sc. Ser. Sc.Techn., XX, 75-81.
Search in Google Scholar
9. 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, 345-352.10.1007/BF02782414
Search in Google Scholar
10. Feltham P., Meakin J.D. (1959), Creep in Face-Centred Cubic Metals with Special Reference to Copper, Acta Metallurgica, 7, 614-627.10.1016/0001-6160(59)90131-2
Search in Google Scholar
11. 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.
Search in Google Scholar
12. Hayhurst D.R. (1974), The effects of test variables on scatter in high-temperature tensile creep-rupture data, International Journal of Mechanical Sciences, 16, 829-841.10.1016/0020-7403(74)90041-1
Search in Google Scholar
13. Kocańda S., Szala J. (1991), Podstawy obliczeń zmęczeniowych, PWN, Warszawa (in Polish).
Search in Google Scholar
14. Monkman F.C., Grant N.J. (1956), An Empirical Relationship between Rupture Life and Minimum Creep Rate in Creep-Rupture Test, Proc. ASTM, 56, 593-620.
Search in Google Scholar
15. Nowak K. (2011), Uncertainty of lifetime for CAFE creep damage model, Computer Methods in Materials Science, 11, 315-323.
Search in Google Scholar
16. Raabe D. (2002), Cellular Automata in Materials Science with Particular Reference to Recrystallization Simulation, Ann. Review of Materials Research, 32, 53-76.10.1146/annurev.matsci.32.090601.152855
Search in Google Scholar
17. Weibull W. (1939), The Phenomenon of Rupture in Solids, Proceedings of Royal Swedish Institute for Engineering Research, 153, 5-55.
Search in Google Scholar
18. 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, 573-583.10.1016/S0308-0161(03)00110-8
Search in Google Scholar

DEPENDENCE OF CREEP FAILURE PROBABILITY ON THE SIZE OF METALLIC SPECIMENS

Abstract

Paradigm

My account