Engineering Transactions, 26, 3, pp. 515-540, 1978

Creep Rapture of Structures at Elevated Temperature and Estimates of Rupture Life

W. Wojewódzki
Technical University of Warsaw, Warszawa
Poland

A description of creep rupture at elevated temperature is proposed. The functions introduced to the constitutive equations were determined from the results of technically possible experiments in the uniaxial stress state. The description is shown to be useful in an investigation of the influence of the elevated temperature, the temperature gradients, its cyclic fluctuations and the cyclic proportional loading upon the stress redistribution, the amount of deformation, the propagation of the damage front and the rupture life of structures. Using the methods for bounding the rupture life of structures, the lower and upper bounds for simple structures were also obtained and compared with the given exact solution.

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References

A. K. PENNY and D. L. MARRIOTT, Design for creep, McGraw-Hill Book Company (UK) Limited, London 1971.

I. A. ODING, V. S. IVANOVA, V. V. BURDUKSKII and V. N. GEMINOV, Creep and stresses relaxation in metals (in English), Oliver and Boyd, London 1965.

A. J. KENNEDY, Processes of creep and fatigue in metals, Oliver and Boyd, London 1962.

S. TAIRA, Lifetime of structures subjected to varying load and temperature, Creep in Structures, IUTAM Colloquium, (Stanford 1960), Proc. N. J. Hoff, Springer-Verlag, Berlin 1962.

L. H. TOFT and T. BROON, Exploratory tests on the effects of temperature and load cycling on the creep resistance and micro-structure of two oustentic steels, Joint Inter. Conf. on Creep, New York, London 1963, Proc. 178, 3A, 1963-64.

G. P. TILLY, Estimation of creep and fatigue under cycling loading, J. Strain Anal., 7, 4, 1972.

V. S. NAMESTNIKOV, Forward and reverse torsion under creep conditions, PMTF, 1., 1960.

J. MORROW and G. R. HALFORD, Creep under repeated stress reversals, Joint Inter. Conf. on Creep, New York, London 1963, Proc. 178, 3A, 1863-64.

D. R. HAYHURST, Estimates of the creep rupture life of structures subjected to variable loading, Univ. Leicester, Dept. Engng., Report 74 -13.

Yu. N. RABOTNOV, Creep problems in structural members (in English), North-Holland, Amsterdam 1969,

A. R. S. PONTER, Deformation displacement and work bounds for structures in a state of creep and subjected to variable loading, ASME, 72 - APM - U.

F. K. G. ODQVIST and J. HULT, Kriechfestigkeit metallischer Werkstoffe, Springer-Verlag, Berlin 1962.

L. M. KACHANOV, Theory of creep (in English), National Lending Library, Boston Spa 1967.

F. A. LECKIE and D. R. HAYHURST, Creep rupture of structures, Proc. Roy. Soc., A340, 323, London 1974.

V. P. SDOBYREV, Criteria of ultimate strength for various heat-treated alloys in intricate states of stress, Academy of Sciences, OTN, Mechanics and Mechanical Engineering, 6, 1959 (in Russian).

J. GLEN and L. K. HAZRA, Some information of creep behaviour of low alloy steels, Proc. Symp. Presentation of creep strain data, October 1971, Corporate Lab, BSC, London 1972.

W. WOJEWÓDZKT, Creep rupture of structures subjected to variable loading and temperature, Trans. 3rd Int. Conf. Struct. Mech. in Reactor Tech., Paper L5/70, London 1975.

L. M. KACHANOV, Rupture time under creep conditions, Problems of Continuum Mechanics, Izd. AN SSSR, Moscow 1961 (in Russian).

F. A. LECKIE and W. WOJEWÓDZKI, Estimates of rupture life-constant load, Int. J. Solids Struct., 11, 1357-1365, 1975.

F.A. LECKIE and W. WOJEWÓDZKI, Estimates of the rupture life of structural components subjected to proportional cyclic loading, J. Mech. Phys. Solids, 24, 239-250, 1976.

A. R. S. PONTER, On the stress analysis of creeping structures subjected to variable loading, J. Appl. Mech., 40, 589, 1973.

S. PIECHNIK and M. CHRZANOWSKI, Time of total creep rupture of a beam under combined load, Sccond IUTAM Symp. of Creep in Structures, (Göteborg 1970), Proc. J. Hult ed., Springer-Verlag, Berlin 1972.

M. ŻYCZKOWSKI and J. SKRZYPEK, Stationary creep and creep rupture of a thick-walled tube under combined loadings, Second IUTAM Symp, of Creep in Structures, (Göteborg 1970), Proc., J. Hult ed., Springer-Verlag, Berlin 1972.




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