Based on the semi-analytic finite element method and relationships of the continuum fracture mechanics, a numerical investigation on the creep and extension of the continuum fracture zone in a gas turbine blade is performed. The value of life prior to the formation of a crack-like defect and applicability limits of the relationships of continuum fracture mechanics are determined.
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N. O. Simin and A. S. Lebedev, “Life design strategy for stationary gas turbine units based on the 3D strength analysis of major assemblies of GTE,” Vibr. Tekhn. Tekhnol., No. 6 (38), 5–9 (2004).
S. V. Kobel’skii, R. I. Kuriat, V. I. Kravchenko, and A. L. Kvitka, “Numerical simulation of the thermal stress state of GTE blade models with heat-resistant coatings,” in: V. T. Troshchenko (Ed.), Assessment and Justification for the Life of Structural Elements [in Ukrainian], Proc. Int. Conf. (Kiev, June 6–9, 2000) Logos, Kiev (2000), Vol. 2, pp. 795–800.
L. B. Getsov, B. E. Mel’nikov, A. S. Semenov, D. Yu. Fokin, et al., “Strength of turbine GTK-25I rotor blades for turboprop engines and methods for extending the life,” in: Proc. IV Int. Conf. Scientific and Technical Problems of Predicting the Reliability and Life of Structures and Methods for Their Solving (St. Petersburg, June 14–17, 2005), St. Petersburg State Technical University (2005), pp. 155–163.
L. B. Getsov, Materials and Strength of Gas Turbine Components [in Russian], Nedra, Moscow (1996).
F. M. Muravchenko, “Pressing problems of dynamics, strength, and reliability of aircraft engines,” Vibr. Tekhn. Tekhnol., No. 6 (38), 2–4 (2004).
V. A. Bazhenov, A. I. Gulyar, N. K. Kucher, and S. O. Piskunov, “Effect of the three-dimensional stress-strain state on the long-term strength of blades,” Vibr. Tekhn. Tekhnol., No. 6 (38), 31–35 (2004).
V. A. Bazhenov, A. I. Gulyar, A. S. Sakharov, and A. G. Topor, Semi-Analytic Finite Element Method in Mechanics of Deformable Bodies [in Russian], Scientific-Research Institute of Structural Mechanics, Kiev (1993).
J. Boyle and J. Spence, Analysis of Stresses in Structures under Creep [Russian translation], Mir, Moscow (1976).
Translated from Problemy Prochnosti, No. 4, pp. 87–93, July–August, 2006.
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Bazhenov, V.A., Gulyar, A.I., Piskunov, S.O. et al. Life assessment for a gas turbine blade under creep conditions based on continuum fracture mechanics. Strength Mater 38, 392–397 (2006). https://doi.org/10.1007/s11223-006-0055-0
- continuum fracture mechanics
- numerical simulation
- finite element method
- spatial problem
- gas turbine blade