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Journal Articles

A Probabilistic Model for Forging Flaw Crack Nucleation Processes for Heavy Duty Gas Turbine Rotor Operations

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121026.
Paper No: GTP-22-1231
DOI: https://doi.org/10.1115/1.4056044
Published Online: November 23, 2022
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Topics: Cycles, Forging, Fracture (Materials), Gas turbines, Nucleation (Physics), Rotors, Stress, Temperature, Modeling, Shapes
Proceedings Papers

A Probabilistic Model for Forging Flaw Crack Nucleation Processes for Heavy Duty Gas Turbine Rotor Operations

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT25A004, June 13–17, 2022
Paper No: GT2022-82303
DOI: https://doi.org/10.1115/GT2022-82303
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Topics: Forging, Fracture (Materials), Gas turbines, Nucleation (Physics), Rotors
Journal Articles

High-Performance Computing Probabilistic Fracture Mechanics Implementation for Gas Turbine Rotor Disks on Distributed Architectures Including Graphics Processing Units

Mrugesh Gajjar1, Christian Amann, Kai Kadau
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011009.
Paper No: GTP-21-1372
DOI: https://doi.org/10.1115/1.4052078
Published Online: October 13, 2021
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Topics: Fracture mechanics, Graphics processing units, Rotors, Architecture
Proceedings Papers

High-Performance Computing Probabilistic Fracture Mechanics Implementation for Gas Turbine Rotor Disks on Distributed Architectures Including Graphics Processing Units (GPUs)

Mrugesh Gajjar, Christian Amann, Kai Kadau
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT27A004, June 7–11, 2021
Paper No: GT2021-59295
DOI: https://doi.org/10.1115/GT2021-59295
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Topics: Architecture, Disks, Fatigue cracks, Fracture mechanics, Gas turbines, Graphics processing units, Rotors, Simulation
Journal Articles

A Probabilistic Model for Forging Flaw Crack Nucleation Processes

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101012.
Paper No: GTP-21-1143
DOI: https://doi.org/10.1115/1.4051426
Published Online: September 3, 2021
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Topics: Cycles, Forging, Fracture (Materials), Nucleation (Physics), Stress, Calibration, Temperature, Rotors
Journal Articles

Probabilistic Fracture Mechanics for Mature Service Frame Rotors

Philipp Engels, Christian Amann, Sebastian Schmitz, Kai Kadau
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071004.
Paper No: GTP-20-1733
DOI: https://doi.org/10.1115/1.4049893
Published Online: March 29, 2021
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Topics: Blades, Cycles, Disks, Failure, Fracture (Materials), Risk, Rotors, Simulation, Forging, Fracture mechanics
Proceedings Papers

A Probabilistic Model for Forging Flaw Crack Nucleation Processes

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT28A004, September 21–25, 2020
Paper No: GT2020-14606
DOI: https://doi.org/10.1115/GT2020-14606
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Topics: Forging, Fracture (Materials), Nucleation (Physics), Rotors
Proceedings Papers

Probabilistic Fracture Mechanics for Mature Service Frame Rotors

Philipp Engels, Christian Amann, Sebastian Schmitz, Kai Kadau
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT28A005, September 21–25, 2020
Paper No: GT2020-14608
DOI: https://doi.org/10.1115/GT2020-14608
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Topics: Fracture mechanics, Rotors, Cycles, Design, Disks, Risk, Blades, Failure, Forging, Gas turbines
Proceedings Papers

Life Assessment of Large Gas Turbine Blades

Santosh B. Narasimhachary, Kyle Smith, Sachin R. Shinde, Christian Amann, Kai Kadau, Saiganesh Iyer
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT31A015, June 17–21, 2019
Paper No: GT2019-91630
DOI: https://doi.org/10.1115/GT2019-91630
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Topics: Blades, Gas turbines, Fracture (Materials), Fracture mechanics, Manufacturing, Computers, Engineering instruments, Geometry, Investment casting (Process), Nickel
Proceedings Papers

Probabilistic Fracture Mechanics Framework Including Crack Nucleation of Rotor Forging Flaws

Francesco Radaelli, Kai Kadau, Christian Amann, Peter Gumbsch
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT32A002, June 17–21, 2019
Paper No: GT2019-90418
DOI: https://doi.org/10.1115/GT2019-90418
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Topics: Forging, Fracture (Materials), Fracture mechanics, Nucleation (Physics), Rotors, Failure, Probability, Fatigue cracks, Cycles, Fatigue
Proceedings Papers

On the Transferability of Probabilistic Fracture Mechanics Results for Scaled 50Hz and 60Hz Heavy Duty Gas Turbine Rotor Disks

Christian Amann, Kai Kadau, Peter Gumbsch
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT32A001, June 11–15, 2018
Paper No: GT2018-75561
DOI: https://doi.org/10.1115/GT2018-75561
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Topics: Disks, Fracture mechanics, Gas turbines, Rotors, Design, Engines, Centrifugal force, Dimensions, Failure, Product development
Journal Articles

Probabilistic Fracture Mechanics for Heavy-Duty Gas Turbine Rotor Forgings

Kai Kadau, Phillip W. Gravett, Christian Amann
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062503.
Paper No: GTP-17-1488
DOI: https://doi.org/10.1115/1.4038524
Published Online: January 23, 2018
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Topics: Cycles, Failure, Fracture (Materials), Fracture mechanics, Risk, Rotors, Simulation, Forgings (Products), Gas turbines, Design
Proceedings Papers

Probabilistic Fracture Mechanics for Heavy Duty Gas Turbine Rotor Forgings

Kai Kadau, Phillip W. Gravett, Christian Amann
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT32A005, June 26–30, 2017
Paper No: GT2017-64811
DOI: https://doi.org/10.1115/GT2017-64811
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Topics: Forgings (Products), Fracture mechanics, Gas turbines, Rotors, Risk, Failure, Simulation, Cycles, Design, Finite element analysis