 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 11223 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8011
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| In English (Mech. Solids): | | 3212 |
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| A. M. Lokoshchenko, "A new method for measuring creep damage in metals," Mech. Solids. 40 (5), 82-92 (2005) |
| Year |
2005 |
Volume |
40 |
Number |
5 |
Pages |
82-92 |
| Title |
A new method for measuring creep damage in metals |
| Author(s) |
A. M. Lokoshchenko (Moscow) |
| Abstract |
We suggest a method for measuring structural damage accumulated in metals
during a high-temperature creep process in uniaxial extension. The method
is based on the simultaneous measurement of longitudinal strains and
electrical resistances in specimens and the comparison of these
experimental data. Unlike other methods, it permits one to measure the
damage during creep tests without unloading and cooling the specimens. Test
data processing by this method provided experimental curves of accumulated
material damage against time. The analysis of these curves permits one to
conclude that the material damage at rupture is a monotone decreasing
function of the stress. The same result was obtained when measuring metal
damage by the metallographic method. We give an interpretation of the
result. Using a modified Broberg approach, we carry out mathematical
modeling of experimental data and obtain a correspondence between the
experimental and theoretical curves of creep strain and damage against
time. |
| References |
| 1. | L. M. Kachanov, "On the creep rupture time," Izv. AN SSSR. OTN,
No. 8, pp. 26-31, 1958. |
| 2. | Yu. N. Rabotnov, "Long-term rupture mechanism," in Strength of
Materials and Structures, pp. 5-7, Izd-vo AN SSSR, Moscow, 1959. |
| 3. | Yu. N. Rabotnov, Creep in Structural Members [in Russian], Nauka,
Moscow, 1966. |
| 4. | A. J. Perry, "Review cavitation in creep," J. Mater. Sci.,
Vol. 9. pp. 1016-1039, 1974 |
| 5. | N. Grant, "High-temperature creep rupture," in Rupture [Russian
translation], pp. 538-578, Mir, Moscow, 1976. |
| 6. | T. G. Berezina and I. I. Trunin, "Interaction of ultimate creep
strain with material damage of steam lines," Metallovedenie i termicheskaya
obrabotka metallov, No. 12, pp. 34-37, 1980. |
| 7. | B. F. Dyson and D. M. R. Taplin, "Creep damage accumulation," in
Grain Bound.Inst. Met. Spring Resident. Conf. 1976, Ser. 3, No. 5, pp. E/23-E/28, London,
1976. |
| 8. | M. Horiguchi, and T. Kawasaki, "Long-term high-temperature
strength of stainless steels," J. Jap. Soc. Strength and Fract. Mat.
[Japanese], Vol. 12, No. 1, pp. 34-43, 1977. |
| 9. | H. Riedel, "The extension of a macroscopic crack at elevated
temperature by the growth and coalescence of microvoids," in Creep in
Structures: Proc. 3rd IUTAM Symp., pp. 504-515, Leicester, 1980, Berlin, 1981. |
| 10. | F. A. Leckie and D. R. Hayhurst, "Constitutive equations for creep rupture," Acta Met.,
Vol. 25, pp. 1059-1070, 1977. |
| 11. | T. Maruyama and T. Nosaka, "Estimating creep damage by observing
voids in alloys obtained by centrifugal casting," J. Soc. Mater. Sci. Jap.
[Japanese], Vol. 28, No. 308, pp. 372-378, 1979. |
| 12. | A. M. Lokoshchenko, "Analysis of creep damage and long-term
strength," Zh. Prikl. Mekhaniki i Tekhn. Fiziki, No. 6, pp. 129-133, 1982. |
| 13. | R. I. Nigmatulin and N. N. Kholin, "Dislocation kinetics of
superplasticity and creep in metals," Doklady AN SSSR, Vol. 31, No. 2,
pp. 303-306, 1976. |
| 14. | Y. Estrin and H. Mecking, "A unified phenomenological description
of work hardening and creep based on one-parameter models," Acta Met.,
Vol. 32, No. 1, pp. 57-70, 1984. |
| 15. | V. M. Rozenberg, A. V. Shalimova, and T. S. Zvereva, "The effect
of temperature and stresses on void formation under creep," Fizika
metallov i metallovedenie, Vol. 25, No. 2, pp. 326-332, 1968. |
| 16. | B. J. Cane, "Deformation induced intergranular creep cavitation
in alpha-iron," Metal Sci., Vol. 12, No. 2, pp. 102-108, 1978. |
| 17. | Yu. N. Goikhenberg et al., "Analysis of creep rupture of
heat-resistant steels," Sb. nauch. tr. Chelyab. politekhn. in-ta, Vol. 89,
No. 229, pp. 72-77, 1979. |
| 18. | V. I. Betekhtin, A. G. Kadomtsev, and A. M. Peters, "Specific
features of high-temperature creep microrupture in metals," Metallovedenie
i termicheskaya obrabotka metallov, No. 12, pp. 24-26, 1980. |
| 19. | R. A. Arutyunyan, "On the relationship between rheology and
rupture of polymeric materials," Mekhanika komposit. materialov, No. 4,
583-585, 1983. |
| 20. | V. I. Kumanin, I. I. Trunin, and R. B. Bogomol'naya, "Study of
high-temperature creep damage accumulation," Nauchn. tr. VZMI, Vol. 1,
pp. 55-65, 1973. |
| 21. | G. Belloni and G. Bernasconi, "Creep damage models," in Creep
Eng. Mater. and Structure, Proc. Semin. Ispra (Varese), 1978,
pp. 195-227, London, 1979. |
| 22. | S. A. Shesterikov, A. M. Lokoshchenko, and E. A. Myakotin, "On
the application of the resistance measurement method for studying strength
and creep in metals," Problemy prochnosti, No. 10, pp. 32-35, 1984. |
| 23. | H. Broberg, "A new criterion for brittle creep rupture," Trans.
ASME, Ser. E, J. Appl. Mech, Vol. 41, No. 3, pp. 809-811, 1974. |
| 24. | P. O. Bostrom, H. Broberg, L. Brathe, and M. Chrzanowski, "On
failure conditions in viscoelastic media and structures," in Intern.
Symp. on Mechanics of Viscoelastic Media and Bodies, pp. 302-311, Gothenburg, 1974,
Springer, Berlin, 1975. |
| 25. | M. D. Dacheva, A. M. Lokoshchenko, and S. A. Shesterikov, "A
model representation of ultimate creep strain," Zh. Prikl. Mekhaniki i Tekhn. Fiziki,
Vol. 4, pp. 139-142, 1984. |
|
| Received |
10 September 2004 |
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