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James C. Sobotka
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Proceedings Papers

A Probabilistic Framework for Minimum Low Cycle Fatigue Life Prediction

Michael P. Enright, Jonathan P. Moody, Yasin Zaman, James C. Sobotka, R. Craig McClung
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT25A001, June 13–17, 2022
Paper No: GT2022-80220
https://doi.org/10.1115/GT2022-80220
View Paper titled, A Probabilistic Framework for Minimum Low Cycle Fatigue Life Prediction
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Topics: Low cycle fatigue, Damage, Fatigue, Fracture (Materials), Gas turbines, Photodynamic therapy, Aircraft, Cycles, Density, Probability
Proceedings Papers

A New Stress-Intensity Factor Solution for an External Surface Crack in Spheres

James C. Sobotka, Yi-Der Lee, Joseph W. Cardinal, R. Craig McClung
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A026, July 13–15, 2021
Paper No: PVP2021-61397
https://doi.org/10.1115/PVP2021-61397
View Paper titled, A New Stress-Intensity Factor Solution for an External Surface Crack in Spheres
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Topics: Stress, Surface cracks, Fracture (Materials), Finite element analysis, Degrees of freedom, Geometry, Pressure vessels, American Petroleum Institute, Fatigue cracks, Formal verification
Journal Articles

Verification of Stress-Intensity Factor Solutions by Uncertainty Quantification

James C. Sobotka, R. Craig McClung
Journal: Journal of Verification, Validation and Uncertainty Quantification
Article Type: Research-Article
J. Verif. Valid. Uncert. June 2019, 4(2): 021003.
Paper No: VVUQ-18-1039
https://doi.org/10.1115/1.4044868
Published Online: October 9, 2019
View Article titled, Verification of Stress-Intensity Factor Solutions by Uncertainty Quantification
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Topics: Finite element analysis, Fracture (Materials), Geometry, Stress
Journal Articles

Some Recent Advances in Engineering Fracture Modeling for Turbomachinery

R. Craig McClung, Yi-Der Lee, James C. Sobotka, Jonathan P. Moody, Vikram Bhamidipati, Michael P. Enright, D. Benjamin Guseman, Colin B. Thomas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021005.
Paper No: GTP-18-1378
https://doi.org/10.1115/1.4040901
Published Online: September 19, 2018
View Article titled, Some Recent Advances in Engineering Fracture Modeling for Turbomachinery
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Topics: Fracture (Materials), Stress
Proceedings Papers

Some Recent Advances in Engineering Fracture Modeling for Turbomachinery

R. Craig McClung, Yi-Der Lee, James C. Sobotka, Jonathan P. Moody, Vikram Bhamidipati, Michael P. Enright, D. Benjamin Guseman, Colin B. Thomas
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT31A002, June 11–15, 2018
Paper No: GT2018-75400
https://doi.org/10.1115/GT2018-75400
View Paper titled, Some Recent Advances in Engineering Fracture Modeling for Turbomachinery
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Topics: Fracture (Materials), Modeling, Turbomachinery, Stress, Corners (Structural elements), Displacement, Fatigue cracks, Finite element model, Weight (Mass)
Proceedings Papers

Influences of Non-Destructive Inspection Simulation on Fracture Risk Assessment of Additively Manufactured Turbine Engine Components

Michael P. Enright, R. Craig McClung, James C. Sobotka, Jonathan P. Moody, John McFarland, Yi-Der Lee, Irving Gray, Joe Gray
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT32A013, June 11–15, 2018
Paper No: GT2018-77058
https://doi.org/10.1115/GT2018-77058
View Paper titled, Influences of Non-Destructive Inspection Simulation on Fracture Risk Assessment of Additively Manufactured Turbine Engine Components
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Topics: Additive manufacturing, Fracture (Materials), Gas turbines, Nondestructive evaluation, Risk assessment, Simulation, Inspection, Computer software, Damage, Failure
Proceedings Papers

Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models

Michael P. Enright, R. Craig McClung, Kwai S. Chan, John McFarland, Jonathan P. Moody, James C. Sobotka
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT29A004, June 13–17, 2016
Paper No: GT2016-58089
https://doi.org/10.1115/GT2016-58089
View Paper titled, Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models
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Topics: Damage, Fracture (Materials), Fracture (Process), Manufacturing, Micromechanics (Engineering), Risk assessment, Tolerance analysis, Gas turbines, Grain size, Modeling
Proceedings Papers

Optimal Automated Fracture Risk Assessment of 3D Gas Turbine Engine Components

Michael P. Enright, Jonathan P. Moody, James C. Sobotka
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT29A005, June 13–17, 2016
Paper No: GT2016-58091
https://doi.org/10.1115/GT2016-58091
View Paper titled, Optimal Automated Fracture Risk Assessment of 3D Gas Turbine Engine Components
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Topics: Fracture (Materials), Fracture (Process), Gas turbines, Risk assessment, Algorithms, Computation, Finite element analysis, Finite element model, Risk, Engines