A New Tool for Design and Certification of Aircraft Turbine Rotors

[+] Author and Article Information
G. R. Leverant, H. R. Millwater, R. C. McClung, M. P. Enright

Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238-5166

J. Eng. Gas Turbines Power 126(1), 155-159 (Mar 02, 2004) (5 pages) doi:10.1115/1.1622409 History: Received December 01, 2001; Revised March 01, 2002; Online March 02, 2004
Copyright © 2004 by ASME
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Enright, M. P., and Wu, Y.-T., 2000, “Probabilistic Fatigue Life Sensitivity Analysis of Titanium Rotors,” Proceedings, 41st Structures, Structural Dynamics, and Materials Conference, Atlanta GA, Apr. 3–6.
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Leverant, G. R. et al., 2000, “Turbine Rotor Material Design,” Federal Aviation Administration Report DOT/FAA/AR-00/64.
Wu, Y.-T., Millwater, H. R., and Enright, M. P., 2000, “Efficient and Accurate Methods for Probabilistic Analysis of Titanium Rotors,” Proceedings, 8th ASCE Specialty Conference on Probabilistic Mechanics and Structural Reliability, South Bend, IN, July 24–26, CD-ROM Proceedings Paper PMC2000-221.
Wu, Y.-T., Enright, M. P., Millwater, H. R., Chell, G. G., Kuhlman, C. J., and Leverant, G. R., 2000, “Probabilistic Methods for Design Assessment of Reliability With Inspection (DARWIN™),” Proceedings, 41st Structures, Structural Dynamics, and Materials Conference, Atlanta GA, Apr. 3–6.
Millwater, H. R., Enright, M. P., Fitch, S., 2002, “A Convergent Probabilistic Technique for Risk Assessment of Gas Turbine Disks Subject to Metallurgical Defects,” 43rd Structures, Structural Dynamics, and Materials Conference, Denver, CO, Apr. 22–25.
Li,  S., Mear,  M. E., and Xiao,  L., 1998, “Symmetric Weak-Form Integral Equation Method for Three-Dimensional Fracture Analysis,” Comput. Methods Appl. Mech. Eng., 151, pp. 435–459.
Subteam to the Aerospace Industries Association Rotor Integrity Subcommittee, 1997, “The Development of Anomaly Distributions for Aircraft Engine Titanium Disk Alloys,” 38th AIAA/ASME/ASCE/AHS/ASC SDM Conference, pp. 2543–2553.
McClung, R. C., Lawless, B. H., Gorelik, M., Date, C., Gill, Y., and Piascik, R. S., 1999, “Fatigue Crack Growth of Titanium Rotor Alloys in Vacuum and Air,” Fatigue Behavior of Titanium Alloys, R. R. Boyer, D. Eylon, and G. Lutjering, eds., The Minerals, Metals, and Materials Society, pp. 211–218.
McKeighan, P. C., Nicholls, A. E., Perocchi, L. C., and McClung, R. C., 2001, “Sensing Crack Nucleation and Growth in Hard Alpha Defects Embedded in Ti-6Al-4V Alloy,” Nontraditional Methods of Sensing Stress, Strain and Damage in Materials and Structures: Second Volume, ASTM STP 1323, G. F. Lucas, P. C. McKeighan, and J. S. Ransom, eds., American Society for Testing and Materials, pp. 15–35.
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Grahic Jump Location
Summary of element and zone discretization features associated with DARWIN™ (3.5 release)
Grahic Jump Location
Cycles to failure vs. initial flaw size for the Flight_Life fracture mechanics module in DARWIN™ compared to OEM fracture mechanics codes
Grahic Jump Location
Summation of the probability of failure for 12 zones computed entirely using DARWIN™ and by OEMs using DARWIN™ in conjunction with their own fracture mechanics codes




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