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John P. Gyekenyesi
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Proceedings Papers

A Review of Failure Models for Ceramic Matrix Composite Laminates Under Monotonic Loads

David E. Tripp, John H. Hemann, John P. Gyekenyesi
Proc. ASME. GT1989, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T12A009, June 4–8, 1989
Paper No: 89-GT-153
DOI: https://doi.org/10.1115/89-GT-153
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Topics: Ceramic matrix composites, Failure, Laminates, Stress, Damage mechanics, Design methodology, Errors, Fibers, Fracture (Materials), Fracture (Process)
Proceedings Papers

Reliability Analysis of a Structural Ceramic Combustion Chamber

Jonathan A. Salem, Jane M. Manderscheid, Marc R. Freedman, John P. Gyekenyesi
Proc. ASME. GT1991, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A005, June 3–6, 1991
Paper No: 91-GT-155
DOI: https://doi.org/10.1115/91-GT-155
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Topics: Ceramics, Combustion chambers, Event history analysis, Failure, Design, Finite element methods, Finite element model, Fractography, Fracture (Materials), Fracture (Process)
Proceedings Papers

Mechanical Behavior of Fiber Reinforced SiC/RBSN Ceramic Matrix Composites: Theory and Experiment

Abhisak Chulya, John P. Gyekenyesi, Ramakrishna T. Bhatt
Proc. ASME. GT1991, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, V005T13A012, June 3–6, 1991
Paper No: 91-GT-209
DOI: https://doi.org/10.1115/91-GT-209
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Topics: Ceramic matrix composites, Fibers, Mechanical behavior, Composite materials, Failure, Cracking (Materials), Damage, Failure mechanisms, Fracture (Process), Nondestructive evaluation
Proceedings Papers

Structural Reliability Analysis of Laminated CMC Components

Stephen F. Duffy, Joseph L. Palko, John P. Gyekenyesi
Proc. ASME. GT1991, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, V005T13A013, June 3–6, 1991
Paper No: 91-GT-210
DOI: https://doi.org/10.1115/91-GT-210
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Topics: Ceramic matrix composites, Event history analysis, Failure, Aerospace industry, Algorithms, Computers, Cracking (Materials), Design, Design methodology, Finite element analysis
Proceedings Papers

Ceramic Component Reliability With the Restructured NASA/CARES Computer Program

Lynn M. Powers, Alois Starlinger, John P. Gyekenyesi
Proc. ASME. GT1992, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A010, June 1–4, 1992
Paper No: 92-GT-383
DOI: https://doi.org/10.1115/92-GT-383
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Topics: Computer software, Industrial ceramics, NASA, Reliability, Databases, Finite element analysis, Modeling, Algorithms, Design, Event history analysis
Proceedings Papers

In-Situ NDE Monitoring of Crack Bridging in Ceramic Composites via Crack Opening Displacement

Abhisak Chulya, John P. Gyekenyesi
Proc. ASME. GT1994, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T13A005, June 13–16, 1994
Paper No: 94-GT-444
DOI: https://doi.org/10.1115/94-GT-444
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Topics: Ceramic composites, Displacement, Fracture (Materials), Nondestructive evaluation, Ceramic matrix composites, Fibers, Acoustic emissions, Fracture mechanics, Interferometry, Lasers
Proceedings Papers

Durability Evaluation of Ceramic Components Using Cares/Life

Noel N. Nemeth, Lynn M. Powers, Lesley A. Janosik, John P. Gyekenyesi
Proc. ASME. GT1994, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A019, June 13–16, 1994
Paper No: 94-GT-362
DOI: https://doi.org/10.1115/94-GT-362
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Topics: Durability, Industrial ceramics, Computer software, Fatigue, Reliability, Stress, Bending (Stress), Ceramics, Design methodology, Disks
Proceedings Papers

Creep Life of Ceramic Components Using a Finite Element Based Integrated Design Program (CARES/CREEP)

Lynn M. Powers, Osama M. Jadaan, John P. Gyekenyesi
Proc. ASME. GT1996, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A008, June 10–13, 1996
Paper No: 96-GT-369
DOI: https://doi.org/10.1115/96-GT-369
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Topics: Creep, Design, Finite element analysis, Industrial ceramics, Stress, Ceramics, Rupture, Damage, Failure, High temperature
Proceedings Papers

Fatigue Strength as a Function of Preloading in Dynamic Fatigue Testing of Glass and Ceramics

Sung R. Choi, Jonathan A. Salem, John P. Gyekenyesi
Proc. ASME. GT1996, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T13A019, June 10–13, 1996
Paper No: 96-GT-342
DOI: https://doi.org/10.1115/96-GT-342
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Topics: Ceramics, Fatigue strength, Fatigue testing, Glass, Fatigue, Failure, Fracture (Materials), Temperature, Testing, Water
Proceedings Papers

Creep Life Prediction of Ceramic Components Subjected to Transient Tensile and Compressive Stress States

Osama M. Jadaan, Lynn M. Powers, John P. Gyekenyesi
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T13A009, June 2–5, 1997
Paper No: 97-GT-319
DOI: https://doi.org/10.1115/97-GT-319
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Topics: Compressive stress, Creep, Industrial ceramics, Transients (Dynamics), Failure, Damage, Stress, Rupture, Ceramics, Design
Proceedings Papers

Multiaxial Creep Life Prediction of Ceramic Structures Using Continuum Damage Mechanics and the Finite Element Method

Osama M. Jadaan, Lynn M. Powers, John P. Gyekenyesi
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T13A012, June 2–5, 1998
Paper No: 98-GT-489
DOI: https://doi.org/10.1115/98-GT-489
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Topics: Ceramics, Creep, Damage mechanics, Finite element methods, Damage, Rupture, Stress, Finite element analysis, Temperature, Cavitation
Proceedings Papers

Life Prediction and Reliability Analysis of Ceramic Structures Under Combined Static and Cyclic Fatigue

Sharif Rahman, Noel N. Nemeth, John P. Gyekenyesi
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T13A018, June 2–5, 1998
Paper No: 98-GT-569
DOI: https://doi.org/10.1115/98-GT-569
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Topics: Ceramics, Event history analysis, Fatigue, Fracture (Materials), Parameter estimation, Algorithms, Cycles, Damage, Design, Regression models
Proceedings Papers

Elevated-Temperature, ‘Ultra’-Fast Fracture Strength of Advanced Ceramics: An Approach to Elevated-Temperature “Inert” Strength

Sung R. Choi, John P. Gyekenyesi
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T13A010, June 2–5, 1998
Paper No: 98-GT-479
DOI: https://doi.org/10.1115/98-GT-479
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Topics: Ceramics, Fracture toughness, Temperature, Fracture (Materials), Silicon, Testing equipment, Composite materials, Failure, Fatigue, Silicon nitride ceramics
Proceedings Papers

Slow Crack Growth Analysis of Advanced Structural Ceramics Under Combined Loading Conditions — Damage Assessment in Life Prediction Testing

Sung R. Choi, John P. Gyekenyesi
Proc. ASME. GT2000, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V004T02A002, May 8–11, 2000
Paper No: 2000-GT-0062
DOI: https://doi.org/10.1115/2000-GT-0062
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Topics: Ceramics, Damage assessment, Fracture (Materials), Testing, Stress, Silicon, Testing equipment, Creep, Damage, Failure
Proceedings Papers

Accelerated Testing Methodologogy in Constant Stress-Rate Testing for Advanced Structural Ceramics: A Preloading Technique

Sung R. Choi, John P. Gyekenyesi, Dean Huebert, Allen Bartlett, Han-Ho Choi
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T02A003, June 4–7, 2001
Paper No: 2001-GT-0460
DOI: https://doi.org/10.1115/2001-GT-0460
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Topics: Ceramics, Stress, Testing, Temperature, Failure mechanisms, Glass, Brittleness, Composite materials, Failure, Fatigue
Proceedings Papers

Reliability and Creep/Fatigue Analysis of a CMC Component

Pappu L. N. Murthy, Subodh K. Mital, John Z. Gyekenyesi, John P. Gyekenyesi
Proc. ASME. GT2007, Volume 1: Turbo Expo 2007, 349-356, May 14–17, 2007
Paper No: GT2007-28225
DOI: https://doi.org/10.1115/GT2007-28225
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Topics: Ceramic matrix composites, Creep, Fatigue analysis, Reliability, Damage, Cycles, Electromagnetic scattering, Probability, Silicon, Stators
Proceedings Papers

Lifetime Reliability Prediction of Ceramics Subjected to Thermal and Mechanical Cyclic Loads

Noel N. Nemeth, Osama M. Jadaan, Eric H. Baker, John P. Gyekenyesi
Proc. ASME. GT2007, Volume 1: Turbo Expo 2007, 237-249, May 14–17, 2007
Paper No: GT2007-27047
DOI: https://doi.org/10.1115/GT2007-27047
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Topics: Ceramics, Reliability, Stress, Temperature, Cycles, Fatigue, Finite element analysis, Fracture (Materials), Industrial ceramics, Materials properties
Proceedings Papers

Power Law Versus Exponential Form of Slow Crack Growth of Advanced Structural Ceramics: Dynamic Fatigue

Sung R. Choi, John P. Gyekenyesi
Proc. ASME. GT2002, Volume 4: Turbo Expo 2002, Parts A and B, 85-95, June 3–6, 2002
Paper No: GT2002-30506
DOI: https://doi.org/10.1115/GT2002-30506
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Topics: Ceramics, Fatigue, Fracture (Materials), Stress, Glass, Temperature, Testing
Proceedings Papers

Foreign Object Damage Behavior of a SiC/SiC Composite at Ambient and Elevated Temperatures

Sung R. Choi, Ramakrishna T. Bhatt, J. Michael Pereira, John P. Gyekenyesi
Proc. ASME. GT2004, Volume 2: Turbo Expo 2004, 385-392, June 14–17, 2004
Paper No: GT2004-53910
DOI: https://doi.org/10.1115/GT2004-53910
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Topics: Composite materials, Damage, Silicon carbide ceramics, Temperature
Proceedings Papers

Effect of Projectile Materials on Foreign Object Damage of a Gas-Turbine Grade Silicon Nitride

Sung R. Choi, Zsolt Racz, Ramakrishna T. Bhatt, David N. Brewer, John P. Gyekenyesi
Proc. ASME. GT2005, Volume 1: Turbo Expo 2005, 339-349, June 6–9, 2005
Paper No: GT2005-68866
DOI: https://doi.org/10.1115/GT2005-68866
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Topics: Damage, Gas turbines, Projectiles, Silicon nitride ceramics