Practical Applications of Fracture Mechanics to Turbine Engine Rotors
Representative applications where fracture mechanics theories have been effectively applied to gas turbine rotor components are discussed. The theoretical basis for each application is reviewed and the results are correlated with actual experimentally determined lives. The resultant capability realized by the utilization of fracture mechanics to extend the service life of parts which had exhausted their apparent useful life, is also highlighted. The current trend in fracture mechanics technology development, utilizing the Boundary-Integral-Equation (BIE) concept, to produce a simplified total life prediction system is outlined.
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- 3.Linask, I. and Dierberger, J., “A Fracture Mechanics Approach to Turbine Airfoil Design”, ASME Publication GT-79, 1975.Google Scholar
- 4.Rau, C.A., Jr., Gemma, A.E. and Leverant, G.R., “Thermal-Mechanical Fatigue Crack Propagation in Nickel- and Cobalt-Base Superalloys Under Various Strain-Temperature Cycles”, in Fatigue at Elevated Temperatures, Special Technical Publication 520. Philadelphia: Am. Soc. for Testing and Materials (1973), 166–78.CrossRefGoogle Scholar
- 6.Bueckner, H.F., “Field Singularities and Related Integral Representations”, General Electric Technical Report DF71LS162, Appendix II (October 1971), 92.Google Scholar
- 8.Cruse, T.A., “Numerical Evaluation of Elastic Stress Intensity Factors by the Boundary Integral Equation Method”, in The Surface Crack; Physical Problems and Computational Solutions, ed. by J.L. Swedlow. New York: Am. Soc. of Mechanical Engineers (1972), 153–70.Google Scholar
- 10.Paris, P.C., Gomez, M.P. and Anderson, W.E., “A Rational Analytical Theory of Fatigue”, Trend. Eng., Wash. Univ., 13, no. 1 (1961), 9–14.Google Scholar
- 11.Tada, H., The Stress Analysis of Cracks Handbook. Hellertown, Pa.: Del Research Corporation, 1973.Google Scholar