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DARWIN References

 

Reports

Southwest Research Institute, University of Texas at San Antonio, Mustard Seed Software, GE Aviation, Honeywell, Pratt & Whitney, Rolls-Royce Corporation (2008). Turbine Rotor Material Design, Phase 2 Final Report, FAA Grant 99-G-016, Federal Aviation Administration, Washington, DC.

Southwest Research Institute, Allied Signal, General Electric, Pratt & Whitney, Rolls-Royce Allison, Scientific Forming Technologies (2000). Turbine Rotor Material Design, Phase 1 Final Report, FAA Grant 95-G-041, Federal Aviation Administration, Washington, DC.

Papers

2018

Enright, M.P., McClung, R.C., Sobotka, J.C., Moody, J.P., McFarland, J., Lee, Y.-D., Gray, I., and Gray, J. (2018).  "Influences of non-destructive inspection simulation on fracture risk assessment of additively manufactured turbine engine components," paper GT2018-77058, Proceedings of the 63rd ASME International Gas Turbine & Aeroengine Technical Congress, Lillestrom, Norway, June 11-15, 2018.

McClung, R.C., Lee, Y.-D., Sobotka, J.C., Moody, J.P., Bhamidipati, V., Enright, M.P., Guseman, D.B., and Thomas, C.B. (2018).  "Some recent advances in engineering fracture modeling for turbomachinery," paper GT2018-75400, Proceedings of the 63rd ASME International Gas Turbine & Aeroengine Technical Congress, Lillestrom, Norway, June 11-15, 2018.

2017

Enright, M.P., Moody, J.P., and Sobotka, J.C. (2017). "Optimal automated fracture risk assessment of 3D gas turbine engine components," Proceedings of the 12th International Conference on Structural Safety and Reliability (ICOSSAR), Vienna, Austria, Aug 6-10, 2017.

McClung, R.C., Enright, M.P., Moody, J.P., Lee, Y.-D., Sobotka, J.C., Bhamidipati, V., and McClure, J.W. (2017). “A comprehensive framework for probabilistic damage tolerant design of aerospace components,” 29th ICAF Symposium, Nagoya, Japan, June 7-9, 2017.

2016

Chan, K.S., “Mechanistic Modeling of Time-Dependent Fatigue Crack Growth in Ni-based Superalloys,” Materials at High Temperatures, Vol. 33, Issue 4-5, 2016, pp. 425-438.

Chan, K.S., Enright, M.P., Moody, J., and Fitch, S.H.K., “Mitigating Time-dependent Crack Growth in Ni-Base Superalloy Components,” International Journal of Fatigue, Vol. 82, 2016, pp. 332 - 341.

Chan, K.S., Enright, M.P., Moody, J., and Fitch, S.H.K., “Physics-based Modeling Tools for Predicting Type II Hot Corrosion in Ni-based Superalloys,” Superalloys 2016, Proceedings of the 13th International Symposium on Superalloys, Edited by Mark Hardy, Eric Huron, Uwe Glatzel, Brian Griffin, Beth Lewis, Cathie Rae, Venkat Seetharaman, and Sammy Tin, TMS (The Minerals, Metals & Materials Society), 2016, pp. 917-925.

Chan, K.S. and Moody, J., “A Hydrogen-Induced Decohesion Model for Treating Cold Dwell Fatigue in Ti-Based Alloys,” Metallurgical and Materials Transactions A, DOI: 10.1007/s11661-016-3367-0, Vol. 47A, 2016, pp. 2058-2072.

Enright, M.P., Moody, J.P., and Sobotka, J.C., “Optimal Automated Risk Assessment of 3D Gas Turbine Engine Components,” Paper GT2016-58091, Proceedings of ASME Turbo Expo 2016, Seoul, South Korea, June 2016.

Enright, M.P., McClung, R.C., Chan, K.S., McFarland, J., Moody, J.P., and Sobotka, J.C., “Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models,” Paper GT2016-58089, Proceedings of ASME Turbo Expo 2016, Seoul, South Korea, June 2016.

McClung, R.C., and Bhamidipati, V., “An Investigation of Small-Crack Effects in Various Aircraft Engine Rotor Materials,” Materials at High Temperatures, Vol. 33, Issue 4-5, 2016, pp. 452-464.

McClung, R.C., Wawrznyek, P., Lee, Y.-D., Carter, B.J., Moody, J.P., and Enright, M.P., “An Integrated Software Tool for High Fidelity Probabilistic Assessments of Metallic Aero-Engine Components,” Paper GT2016-57877, Proceedings of ASME Turbo Expo 2016, Seoul, South Korea, June 2016.

McClung, R.C., “Integrating Fracture Mechanics into the Material and Structural Design Process,” Jerry L. Swedlow Memorial Lecture, 15th International ASTM/ESIS Symposium on Fatigue and Fracture Mechanics (40th National Symposium on Fatigue and Fracture Mechanics), Anaheim, California, May 2015.  Also published in Materials Performance and Characterization, DOI: 10.1520/MPC20160006, Vol. 5, No. 3, 2016, pp. 171-193.

2014

Chan, K.S., Enright, M.P., Moody, J., and Fitch, S.H.K., “A Microstructure-based Time-dependent Crack Growth Model for Life and Reliability Prediction of Turbopropulsion Systems,” Metallurgical and Materials Transactions A, DOI: 10.1007/s11661-013-1971-9, Vol. 45A, 2014, pp. 287–301.

McClung, R.C., Enright, M.P., Moody, J.P., Lee, Y.-D., and McFarland, J., “Integrating Fatigue Crack Growth into Reliability Analysis and Computational Materials Design,” Fatigue 2014, Proceedings 11th International Fatigue Congress, Melbourne, Australia, March 2014, Advanced Materials Research, Vols. 891-892, 2014, pp. 1009-1014.

2013

Chan, K.S., Enright, M.P., and Moody, J.P. (2013). "Development of a probabilistic methodology for predicting hot corrosion fatigue crack growth life of gas turbine engine disks," paper GT2013-95057, Proceedings of the 58th ASME International Gas Turbine & Aeroengine Technical Congress, San Antonio, TX, June 3-7, 2013.

Enright, M.P., McFarland, J., McClung, R.C., Moody, J.P., Wu, W-T., and Shankar, R. (2013). "Probabilistic integration of material process modeling and fracture risk assessment using Gaussian Process models," chapter DOI 10.2514/6.2013-1851, Proceedings of the 15th AIAA Non-Deterministic Approaches Conference, Boston, MA, April 8-11, 2013.

Enright, M.P., McFarland, J., McClung, R.C., Wu, W-T., and Shankar, R. (2013). “A probabilistic framework for incorporating material processing parameters into fracture risk computations,” Proceedings of the 11th International Conference on Structural Safety and Reliability (ICOSSAR), New York, NY, USA, June 16-20, 2013.

McClung, R.C., Lee, Y.-D., Cardinal, J.W., and Guo, Y., “The Pursuit of K: Reflections on the Current State of the Art in Stress Intensity Factor Solutions for Practical Aerospace Applications,” Proceedings of the 27th Symposium of the International Committee on Aeronautical Fatigue and Structural Integrity, Jerusalem, June 2013, Volume 1, pp. 361-375.

Moody, J.P., Enright, M.P., and Liang, W. (2013). "An optimal automated zone allocation approach for risk assessment of gas turbine engine components," paper GT2013-95129, Proceedings of the 58th ASME International Gas Turbine & Aeroengine Technical Congress, San Antonio, TX, June 3-7, 2013.

2012

Chan, K.S., Enright, M.P., Moody, J.P., Hocking, B., and Fitch, S. (2012). “Life prediction for turbopropulsion systems under dwell fatigue conditions,” Journal of Engineering for Gas Turbines and Power, ASME, 134 (12) pp. 122501-8. Award winning article (ASME Structures & Dynamics Committee Best Paper Award 2012).

Chan, K.S., Enright, M.P., Golden, P.J., Naboulsi, S., Chandra, R., and Pentz, A.C. (2012). "Probabilistic high-cycle fretting fatigue assessment of gas turbine engine materials,” Journal of Engineering for Gas Turbines and Power, ASME, 134 (6) pp. 062502:1-8.

Enright, M.P., McClung, R.C., Liang, W., Lee, Y-D., Moody, J.P., and Fitch, S. (2012). "A tool for probabilistic damage tolerance of hole features in turbine engine rotors," paper GT2012-69968, Proceedings of the 57th ASME International Gas Turbine & Aeroengine Technical Congress, Copenhagen, Denmark, June 11-15, 2012.

Enright, M.P., Moody, J.P., Chandra, R., and Pentz, A.C. (2012). "Influence of mission variability on fracture risk of gas turbine engine components," paper GT2012-69960, Proceedings of the 57th ASME International Gas Turbine & Aeroengine Technical Congress, Copenhagen, Denmark, June 11-15, 2012.

Lenets, Y.N., “Practical Aspects of Fatigue Crack Growth in Aero-GTE Applications,” Paper GT2012-68736, Proceedings of ASME Turbo Expo 2012, Copenhagen, Denmark, June 2012.

Liang, W. and Enright, M.P. (2012). "Estimating the probabilistic size and shape distributions of 3D anomalies from sectioning measurements using the stereological unfolding approach," Journal of Engineering for Gas Turbines and Power, ASME, 134 (5) pp. 1-7.

Ma, F., “A Superposition Approach for Time-Dependent Fatigue Crack Growth,” Paper GT2012-68780, Proceedings of ASME Turbo Expo 2012, Copenhagen, Denmark, June 2012.

McClung, R.C., Lee, Y-D., Enright, M.P., and Liang, W. (2012). "New methods for automated fatigue crack growth and reliability analysis," paper GT2012-69121, Proceedings of the 57th ASME International Gas Turbine & Aeroengine Technical Congress, Copenhagen, Denmark, June 11-15, 2012.

McClung, R.C., Enright, M.P., Liang, Moody, J.P., Wu, W-T., Shankar, R., Luo, W., Oh, J, and Fitch, S. (2012). "Integration of manufacturing process simulation with probabilistic damage tolerance analysis of aircraft engine components," Paper AIAA-2012-1528, Proceedings of the 14th AIAA Non-Deterministic Approaches Conference, Honolulu, HI, April 23-26, 2012.

2011

Chan, K.S., et al. (2011). "Probabilistic high-cycle fretting fatigue assessment of gas turbine engine materials," Paper GT2011-46686, Proceedings of the 56th ASME International Gas Turbine & Aeroengine Technical Congress, Vancouver, Canada, June 6-11, 2011.

Enright, M.P., and McClung, R.C. (2011). "Estimating marginal densities of materials with multiple anomaly types," Proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP11), Zurich, Switzerland, Aug 1-4, 2011.

Enright, M.P., and McClung, R.C. (2011). “A probabilistic framework for gas turbine engine materials with multiple types of anomalies,” Journal of Engineering for Gas Turbines and Power, ASME, 133 (8) pp. 082502:1-10.

Enright, M.P., Chan, K.S., Moody, J.P., Golden, P., Chandra, R., and Pentz, A. (2011). “Influence of random residual stress on fretting fatigue risk of engine disks,” AIAA Journal, 49 (5), pp. 881-889.

Liang, W. and Enright, M.P. (2011). "Estimating the probabilistic size and shape distributions of 3d anomalies from sectioning measurements using the stereological unfolding approach," Paper GT2011-46653, Proceedings of the 56th ASME International Gas Turbine & Aeroengine Technical Congress, Vancouver, Canada, June 6-11, 2011.

2010

Chan, K.S., et al. (2010). “Toward developing a probabilistic methodology for predicting high-cycle fretting fatigue in aero-engines,” Paper GT2010-23007, Proceedings of the 55th ASME International Gas Turbine & Aeroengine Technical Congress, Glasgow, Scotland, June 14-18, 2010.

Enright, M.P., et al. (2010). “Development of risk contours for assessment of aircraft engine components,” Paper AIAA-2010-2846, Proceedings of the 12th AIAA Non-Deterministic Approaches Conference, Orlando, FL, April 12-15, 2010.

Enright, M.P., et al. (2010). “Probabilistic fretting fatigue assessment of aircraft engine disks,” Journal of Engineering for Gas Turbines and Power, ASME, 132 (7), pp. 072502:1-9.

Enright, M.P., et al. (2010). “Probabilistic treatment of crack formation and growth for gas turbine engine materials,” Journal of Engineering for Gas Turbines and Power, ASME, 132 (8), pp. 082106:1-8.

Enright, M.P., and McClung, R.C. (2010). “A probabilistic framework for gas turbine engine materials with multiple types of anomalies,” Paper GT2010-23618, Proceedings of the 55th ASME International Gas Turbine & Aeroengine Technical Congress, Glasgow, Scotland, June 14-18, 2010.

McClung, R. C., et al. (2010). “Automated Fatigue Crack Growth Analysis of Components,” Fatigue 2010, 10th International Fatigue Congress, Prague, Czech Republic, June 2010. Also published in Procedia Engineering, Vol. 2, 2010, pp. 629-637.

2009

Chan, K.S., et al. (2009). “Residual stress profiles for mitigating fretting fatigue in gas turbine engine disks,” International Journal of Fatigue, 32, pp. 815-823.

McClung, R. C., et al. (2009). “A New Computational Framework for Fatigue Crack Growth Analysis of Components,” Proceedings of the 12th International Conference on Fracture (ICF12), Ottawa, Canada, July 2009.

2008

Enright, M.P., et al. (2008). “Probabilistic treatment of aircraft engine usage,” Paper GT2008-51393, Proceedings of the 53rd ASME International Gas Turbine & Aeroengine Technical Congress, ASME, Berlin, Germany, June 9-13, 2008.

Lee, Y.-D., McClung R.C., and Chell, G.G., 2008, “An Efficient Stress Intensity Factor Solution Scheme for Corner Cracks at Holes under Bivariant Stressing,” Fatigue and Fracture of Engineering Materials and Structures, Vol. 31, No. 11, pp. 1004-1016.

Millwater, H.R. et al. (2008). “Simulation of recurring automated inspections on probability-of-fracture estimates,” Structural Health Monitoring, 7, pp. 293-307.

Moody, J.P., et al. (2008). “Adaptive risk refinement methodology for gas turbine engine rotor disks,” Paper AIAA-2008-2224, 49th AIAA Structures, Structural Dynamics, and Materials Conference, AIAA, Schaumburg, IL, April 7-10, 2008.

2007

Enright, M.P., and Hudak, S.J. (2007). “Probabilistic mission identification of aircraft engine usage using nonparametric density estimation techniques,” Paper GT2007-27176, Proceedings of the 52nd ASME International Gas Turbine & Aeroengine Technical Congress, ASME, Montreal, Canada, May 14-17, 2007.

Enright, M.P., et al. (2007). “Efficient integration of sampling-based spatial conditional failure joint probability densities”, Paper AIAA-2007-1938, 48th AIAA Structures, Structural Dynamics, and Materials Conference, AIAA, Honolulu, HI, April 23-36, 2007.

McClung, R.C., 2007, “A Literature Survey on the Stability and Significance of Residual Stresses During Fatigue,” Fatigue and Fracture of Engineering Materials and Structures, Vol. 30, No. 3, pp.173-205.

Millwater, H.R., et al. (2007). “A convergent zone-refinement method for risk assessment of gas turbine disks subject to low-frequency metallurgical defects,” Journal of Engineering for Gas Turbines and Power, ASME, 129, pp. 827-835.

Moody, J.P., et al. (2007). “Automatic risk assessment methodology for gas turbine engines employing adaptive recursive triangulation,” Paper GT2007-27576, Proceedings of the 52nd ASME International Gas Turbine & Aeroengine Technical Congress, ASME, Montreal, Canada, May 14-17, 2007.

2006

Enright, M.P., et al. (2006). “Application of nonparametric methods to rainflow stress density estimation of gas turbine engine usage,” Paper GT2006-90780, Proceedings of the 51st ASME International Gas Turbine & Aeroengine Technical Congress, ASME, Barcelona, Spain, May 8-11, 2006.

Enright, M.P., et al. (2006). “Nonparametric risk assessment of gas turbine engine usage”, Paper AIAA-2006-49448, 47th AIAA Structures, Structural Dynamics, and Materials Conference, AIAA, Newport, RI, May 1-4, 2006.

Enright, M.P. and Huyse, L. (2006). "Methodology for probabilistic life prediction of multiple anomaly materials," AIAA Journal, 44(4), pp. 787-793.

Enright, M.P. et al. (2006). "Adaptive optimal sampling methodology for reliability prediction of series systems," AIAA Journal, 44(3), pp. 523-528.

Enright, M.P., et al. (2006). “Application of probabilistic fracture mechanics to prognosis of aircraft engine components,” AIAA Journal, AIAA, 44 (2), pp. 311-316.

Huyse, L., and Enright, M.P. (2006). “Efficient conditional failure analysis - application to an aircraft engine component,” Structure and Infrastructure Engineering, Taylor & Francis, 2(3), pp. 221-230.

Millwater, H.R. and Osborn, R.W. (2006).  "Probabilistic sensitivities for fatigue analysis of turbine engine disks," International Journal of Rotating Machinery, Volume 2006, pp. 1-12.

2005

Enright, M.P. et al. (2005). "Fracture mechanics-based probabilistic life prediction of components with large numbers of inherent material anomalies," Proceedings Ninth International Conference on Structural Safety and Reliability (ICOSSAR), Rome, Italy, June 19-23, pp. 601-607.

Enright, M.P. et al. (2005). "A probabilistic framework for risk prediction of engine components with inherent and induced material anomalies," Proceedings 50th ASME International Gas Turbine & Aeroengine Technical Congress, Reno, NV, June 6-9, Paper GT2005-68982.

Enright, M.P. et al. (2005). "Methodology for probabilistic life prediction of multiple anomaly materials," Proceedings of the 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Austin, TX, April 18-21.

Jameel, A. (2005). "Surface damage tolerance analysis of a gas turbine engine rotor", Proceedings 50th ASME International Gas Turbine & Aeroengine Technical Congress, Reno, NV, June 6-9, Paper GT2005-68760.

Momin, F.N. et al. (2005). "Application of the generalized conditional expectation method for enhancing probabilistic fatigue design code," Proceedings of the 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Austin, TX, April 18-21.

Osborn, W. et al. (2005). "Application of probabilistic sensitivities to probabilistic fatigue analysis of gas turbine engine disks," Proceedings of the 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Austin, TX, April 18-21.

2004

Enright, M.P. et al. (2004). "Probabilistic methodology for life prediction of aircraft turbine rotors," Proceedings, 9th Biennial ASCE Aerospace Division International Conference (Earth and Space), Houston, TX, March 7-10.

Enright, M.P. et al. (2004). "Adaptive Optimal Sampling Methodology for Zone-Based Probabilistic Life Prediction," Proceedings of the 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Palm Springs, CA, April 19-22.

Leverant, G.R. et al. (2004). "A new tool for design and certification of aircraft turbine rotors," Journal of Engineering of Gas Turbines and Power, Volume 126, pp. 155-159.

McClung, R.C. et al. (2004). "Efficient fracture design for complex turbine engine components," Proceedings, 49th ASME International Gas Turbine & Aeroengine Technical Congress, ASME, Vienna, Austria, June 14-17, ASME Paper GT2004-53323.

Millwater, H.R. et al. (2004). "Application of Parallel Processing to Probabilistic Fracture Mechanics Analysis of Gas Turbine Disks," Proceedings of the 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Palm Springs, CA, April 19-22.

Momin, F.N. et al. (2004). "Application of a Conditional Expectation Response Surface Approach to Probabilistic Fatigue," 9th ASCE Speciality Conference on Probabilistic Mechanics and Structural Reliability, ASCE, Albuquerque, NM, July, ASCE Paper PMC2004-204.

Waldhart, C. et al. (2004). "Methodology for Application of 3-D Stresses to Surface Damage-Based Risk Assessment,"Proceedings of the 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Palm Springs, CA, April 19-22.

2003

Enright, M.P. et al. (2003). "Probabilistic surface damage tolerance assessment of aircraft turbine rotors," Proceedings of the 48th ASME International Gas Turbine & Aeroengine Technical Congress, Atlanta, GA, June 16-19.

Huyse, L. et al. (2003). "Efficient Statistical Analysis of Failure Risk in Engine Rotor Disks Using Importance Sampling Techniques," Proceedings of the 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Norfolk, VA, April 7-10.

Laz, P.J. et al. (2003). "Effect of CTE-induced residual stresses around hard alpha particles on fatigue crack growth in Ti-6Al-4V," Fatigue and Fracture of Engineering Materials and Structures Vol. 26, No. 12, pp. 1145-1157.

Millwater, H.R. et al. (2003). "Application of an XML-Based Database for Probabilistic Analysis," Proceedings of the 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Norfolk, VA, April 7-10.

2002

Enright, M.P. et al. (2002). "Optimal sampling techniques for zone-based probabilistic fatigue life prediction," Proceedings of the 43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Non-Deterministic Approaches Forum, Denver, CO, April 22-25.

Leverant, G.R. et al. (2002). "A new tool for design and certification of aircraft turbine titanium rotors," Proceedings of the 47th ASME International Gas Turbine & Aeroengine Technical Congress, Amsterdam, The Netherlands, June 3-6.

Millwater, H.R. et al. (2002). "A convergent probabilistic technique for risk assessment of gas turbine disks subject to metallurgical defects," Proceedings of the 43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Non-Deterministic Approaches Forum, Denver, CO, April 22-25.

Wu, Y.-T. et al. (2002). "Probabilistic Methods for Design Assessment of Reliability with Inspection," AIAA Journal, Volume 40, Number 5, pages 937-946.

2000

Chan, K.S. et al. (2000). "Constitutive Properties of Hard-Alpha Titanium," Metallurgical and Materials Transactions, Volume 31A, December 2000.

Enright, M.P. et al. (2000). "Probabilistic fatigue life sensitivity analysis of titanium rotors," Proceedings, 41st Structures, Structural Dynamics, and Materials Conference, Atlanta, GA, April 3-6.

McKeighan, P.C. et al. (2000). "Sensing Crack Nucleation and Growth in Hard Alpha Defects Embedded in Ti-6AI-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, West Conshohocken, PA, 2000.

Millwater, H.R. et al. (2000). "A probabilistically-based damage tolerance analysis computer program for hard alpha anomalies in titanium rotors," Proceedings of the 45th ASME International Gas Turbine & Aeroengine Technical Congress, Munich, Germany, May 8-10.

Wu, Y.-T. (Justin) et al. (2000). "Efficient and accurate methods for probabilistic analysis of titanium rotors," Proceedings of the 8th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability, Notre Dame, IN, July 24-26.

Wu, Y.-T. (Justin) et al. (2000). "Probabilistic methods for design assessment of reliability with inspection (DARWIN)," Proceedings, 41st Structures, Structural Dynamics, and Materials Conference, Atlanta, GA, April 3-6.

1999

McClung, R.C. et al. (1999). "Development of a probabilistic design system for gas turbine rotor inspection," Fatigue '99 The Seventh International Fatigue Conference, Beijing, China, June 8-12, 2655-2660.

McClung, R.C. et al. (1999). "Fatigue crack growth of titanium rotor alloys in vacuum and air", Fatigue Behavior of Titanium Alloys, R. Boyer, D. Eylon, G. Lutjering eds., The Minerals, Metals & Materials Society, 211-218.

McKeighan, P.C. et al. (1999). "Characterizing the cracking behavior of hard alpha defects in rotor grade Ti-6-4 Alloy", Fatigue Behavior of Titanium Alloys, R.R. Boyer, D. Eylon, and G. Lutjering, eds., The Minerals, Metals & Materials Society.

1997

Aerospace Industries Association Rotor Integrity Sub-Committee(1997). " The development of anomaly distributions for aircraft engine titanium disk alloys", 38th AIAA/ASME/ASCE/AHS/ASC SDM Conference, 2543-2553.

Leverant, G.R. et al. (1997). "A probabilistic approach to aircraft turbine rotor material design," ASME International Gas Turbine & Aeroengine Congress ,Paper 97-GT-22.

Presentations

2017

Enright, Michael, “Integrating Non-Destructive Inspection Simulation with Fracture Risk Assessment of Additively Manufactured Turbine Engine Components,” Propulsion Safety and Sustainment Conference, Phoenix, AZ, May 23-25, 2017.

McClung, Craig, “A Comprehensive Framework for Probabilistic Damage Tolerant Design of Aerospace Components,” 29th ICAF Symposium, International Committee on Aeronautical Fatigue, Nagoya, Japan, June 5-9, 2017.

McClung, Craig, “A General Framework for Probabilistic Fracture Mechanics Analysis of Components,” 14th International Conference on Fracture, Rhodes, Greece, June 18-23, 2017.

Sobotka, J.C. , M.P. Enright, K.S. Chan, R.C. McClung, J. McFarland, and J.P. Moody, “Propagating Stochastic Manufacturing Processes into Risk Predictions for Gas-Turbine Engines,” U.S. National Congress of Computational Mechanics, Montreal, Canada, July 17-20, 2017.

Sobotka, J.C., R. C. McClung, “A Verification Process for Surrogate Models: Applications to Stress Intensity Factors,” ASME Verification & Validation Symposium, Las Vegas, Nevada, May 3-5, 2017.

2016

Chan, Kwai, “Toward Incorporating Cold Dwell Fatigue Lifetime Predictions into DARWIN,” FAA-AFRL Workshop on Cold Dwell Fatigue of Titanium Alloys: Review of Progress and Future Plans, Dayton, Ohio, Apr 18-19, 2016.

Enright, M.P., Moody, J.P., and Sobotka, J.C., “Optimal Automated Fracture Risk Assessment of 3D Gas Turbine Engine Components,” Propulsion Safety and Sustainment Conference, Grapevine, Texas, March 2016.

Enright, M.P., McClung, R.C., Chan, K.S., McFarland, J., Moody, J.P., and Sobotka, J.C., “Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models,” Propulsion Safety and Sustainment Conference, Grapevine, Texas, March 2016.

Gray, J., Gray, I., Enright, M.P., McClung, R.C., McFarland, J., and Moody, J.P., “Integration of Simulated NDE POD Curves with Structural Reliability Assessments,” Aircraft Airworthiness and Sustainment Conference, Grapevine, Texas, March 2016.

McClung, Craig, “Fracture Mechanics and Nondestructive Evaluation Modeling to Support Rapid Qualification of Additively Manufactured Parts,” ASTM Workshop on Mechanical Behavior of Additive Manufactured Components, San Antonio, Texas, May 4-5, 2016.

McClung, Craig, “Structural Integrity Assessment for Aviation Parts with Inherent or Induced Material or Manufacturing Anomalies,” Joint FAA – Air Force Workshop on Qualification / Certification of Additively Manufactured Parts, Dayton, Ohio, Aug 30 – Sep 1, 2016.

2015

Chan, K.S., Enright, M.P., Moody, J.P., and Fitch, S.H.K., “Modelling Variability of Time-Dependent Fatigue Crack Growth in Ni-Base Superalloy Disks,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Baltimore, Maryland, March-April 2015.

Enright, M.P., McClung, R.C., McFarland, J., Moody, J.P., Chan, K.S., Sobotka, J.C., Shankar, R., and Wu, W.-T., “Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Baltimore, Maryland, March-April 2015.

McClung, R.C. and Enright, M.P., “Current Trends in Probabilistic Damage Tolerance Analysis with DARWIN,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Baltimore, Maryland, March-April 2015.

McClung, R.C., “Don’t Let it Break: Using Probabilistic Fracture Mechanics to Transform the Material and Structural Design Process,” Distinguished Seminar, Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee, November 2015.

Moody, J.P., Sobotka, J.C., Enright, M.P., and McClung, R.C., “An Optimized Automated Methodology for the Assessment of Fracture Risk in Gas Turbine Engine Components,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Baltimore, Maryland, March-April 2015.

Wawrzynek, P., Lee, Y.-D., Moody, J.P., Carter, B.J., McClung, R.C., and Enright, M.P., “A Software Tool for High Fidelity Probabilistic Fatigue Life Assessments of Metallic Aero-Engine Components,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Baltimore, Maryland, March-April 2015.

2014

Chan, K.S., Enright, M.P., Moody, J., and Fitch, S.H.K., “Mitigating Time-dependent Crack Growth in Ni-Base Superalloy Components,” International Conference on Fatigue Damage of Structural Materials X, Hyannis, Massachusetts, September 2014.

McClung, R.C., Enright, M.P., McFarland, J., Chan, K.S., Wu, W.-T., and Shankar, R., “Linking ICME to Component Life Management During Design,” TMS Annual Meeting, Symposium on ICME:  Linking Microstructure to Structural Design Requirements, San Diego, California, February 2014.

2013

Chan, K.S., Enright, M.P., Moody, J.P., and Fitch, S. (2013). "A microstructure-based time-dependent crack growth model for life and reliability prediction of turbopropulsion systems," Proceedings of the TMS 2013 Annual Meeting & Exhibition, San Antonio, TX, March 3-7, 2013.

McClung, R.C., Enright, M.P., Wu, W.-T., and Shankar, R., “Integrating Computational Materials Engineering into Probabilistic Damage Tolerance Analysis for Component Design,” TMS Annual Meeting & Exhibition, San Antonio, Texas, March 2013.

2012

Chandra, R., Enright, M.P., Pentz, A., and Moody, J.P., “Mission Variability Effects on Probabilistic Risk of Gas Turbine Engine Components,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Jacksonville, Florida, March 2012.

Enright, M.P., McClung, R.C., Shankar, R., Wu, W.-T., Chan, K.S., and McFarland, J., “Integrating Probabilistic Lifing with Manufacturing Process Modeling,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Jacksonville, Florida, March 2012.

McClung, R.C. and Bhamidipati, V., “An Investigation of Small-Crack Effects in Various Aircraft Engine Rotor Materials,” Propulsion—Safety and Affordable Readiness (P-SAR) Conference, Jacksonville, Florida, March 2012.

2011

Enright, M.P., McClung, R.C., Liang, W., Lee, Y.-D., Moody, J.P., and Fitch, S.H.K., March 2011, “Automated Fracture Mechanics and Probabilistic Models for Risk Assessment of Gas Turbine Engine Materials,” Propulsion – Safety and Affordable Readiness Conference, Jacksonville, Florida.

2010

McClung, R.C., Enright, M.P., Lee, Y.-D., Liang, W., and Fitch, S.H.K., June 2010, “Advanced Software for Integrated Probabilistic Damage Tolerance Analysis Including Residual Stress Effects,” AeroMat 2010 Conference, Bellevue, Washington.

McClung, R.C., Enright, M.P., Lee, Y.-D., Liang, W., and Fitch, S.H.K., September 2010, “Advanced Software for Integrated Probabilistic Damage Tolerance Analysis Including Residual Stress Effects,” 2010 Residual Stress Summit, Tahoe City, California.

McClung, R.C., Lee, Y.-D., Liang, W., Enright, M.P., and Fitch, S.H.K, March 2010, “Automated Tools for Fracture Mechanics Life Prediction and Reliability,” Propulsion – Safety and Affordable Readiness Conference, Jacksonville, Florida.

2007

Enright, M., McClung, R.C., and Huyse, L., March 2007, “Probabilistic Life Prediction of Components with Large Numbers of Material Anomalies,” Propulsion – Safety and Affordable Readiness Conference, San Diego, California.

2003

Enright, M.P. et al. (2003). "Summary of New DARWIN Capabilities for Surface Damage Tolerance Assessment and Related Enhancements," 6th Annual FAA/Air Force NASA/Navy Workshop on the Application of Probabilistic Methods to Gas Turbine Engines, Solomon's Island, MD, March 16-20, 2003.

Huyse, L. et al. (2003). "Recent Probabilistic Computational Efficiency Enhancements in DARWIN," 6th Annual FAA/Air Force NASA/Navy Workshop on the Application of Probabilistic Methods to Gas Turbine Engines, Solomon's Island, MD, March 16-20, 2003.

Jameel, A., Lehmann, D., Tschopp, J., and Dubke, J. (2003). "Application of DARWIN to evaluate risk of fracture due to material anomalies in gas turbine engines," 6th Annual FAA/Air Force NASA/Navy Workshop on the Application of Probabilistic Methods to Gas Turbine Engines, Solomon's Island, MD, March 16-20, 2003.

McClung R.C. et al. (2003). "The DARWIN® Computer Program for Probabilistic Damage Tolerance Analysis of Engine Rotors," ADF Aircraft Engine Symposium, Melbourne, Australia, October 29-30, 2003.

McClung, R.C (2003). "An Executive Update on the Turbine Rotor Material Design (TRMD) Program," 6th Annual FAA/Air Force NASA/Navy Workshop on the Application of Probabilistic Methods to Gas Turbine Engines, Solomon's Island, MD, March 16-20.

2001

Leverant, G.R. et al. (2001). "Update on the FAA turbine rotor material design program," 5th Annual FAA/Air Force/NASA/Navy Workshop on the Application of Probabilistic Methods for Gas Turbine Engines, Westlake, Ohio, June 11-13.

McClung, R.C. et al. (2001). "Crack nucleation and growth data and modeling," 5th Annual FAA/Air Force/NASA/Navy Workshop on the Application of Probabilistic Methods for Gas Turbine Engines, Westlake, Ohio, June 11-13.

McClung, R.C. et al. (2001). "A probabilistic damage tolerance analysis computer program for engine rotor integrity," AHS Forum 57, Special Session on Engine Life Management: Addressing Fleet Risk With Innovative Approaches, Washington, DC, May 9-11.

Millwater, H.R. et al. (2001). "DARWIN enhancements for probabilistic risk assessment," 5th Annual FAA/Air Force/NASA/Navy Workshop on the Application of Probabilistic Methods for Gas Turbine Engines, Westlake, Ohio, June 11-13.

1999

McClung, R.C. (1999). "Fracture mechanics analysis in DARWIN," 4th Annual FAA/USAF Workshop, Application of Probabilistic Methods to Gas Turbine Engines, Jacksonville, FL, December 7-8.

Millwater, H.R. et al. (1999). "A probabilistically-based damage tolerance analysis computer program for hard alpha defects in titanium rotors," USAF Structural Integrity Program Conference, San Antonio, TX, Nov. 30.

Wu, Y.-T. (Justin), et al. (1999). "Probabilistic methods for DARWIN," 4th Annual FAA/USAF Workshop, Application of Probabilistic Methods to Gas Turbine Engines, Jacksonville, FL, December 7-8.