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Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT25A001, June 7–11, 2021

Paper No: GT2021-58462

DOI: https://doi.org/10.1115/GT2021-58462

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Topics: Additive manufacturing, Dampers, Discrete element methods, Particulate matter, Simulation, Damping, Geometry, Vibration, Cantilever beams, Collisions (Physics)

Journal Articles

Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

Onome Scott-Emuakpor, Luke Sheridan, Brian Runyon, Tommy George

J. Eng. Gas Turbines Power. October 2021, 143(10): 101009.

Paper No: GTP-20-1707

DOI: https://doi.org/10.1115/1.4051489

Published Online: September 3, 2021

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Topics: Damping, Fatigue, Vibration, Additive manufacturing, Stress, Vibration suppression, Fatigue life

Journal Articles

Shape Optimization of Rectangular Plates for Vibration-Based Fatigue Testing

Brandon A. Furman, Benjamin D. Hill, Emma E. German, Onome Scott-Emuakpor, Ryan B. Berke

J. Appl. Mech. September 2021, 88(9): 091001.

Paper No: JAM-21-1067

DOI: https://doi.org/10.1115/1.4050676

Published Online: April 30, 2021

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Topics: Fatigue testing, Plates (structures), Resonance, Stress, Vibration

Journal Articles

Structural Dynamic and Inherent Damping Characterization of Additively Manufactured Airfoil Components

Andrew Goldin, Onome Scott-Emuakpor, Tommy George, Brian Runyon, Richard Cobb

J. Eng. Gas Turbines Power. May 2021, 143(5): 051022.

Paper No: GTP-20-1743

DOI: https://doi.org/10.1115/1.4050022

Published Online: March 15, 2021

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Topics: Additive manufacturing, Blades, Damping, Testing, Vibration, Structural dynamics, Inspection

Proceedings Papers

Structural Integrity Assessments for Validating Directed Energy Deposition Repairs of Integrally Bladed Rotor

Onome Scott-Emuakpor, Brian Runyon, Tommy George, Andrew Goldin, Casey Holycross, Luke Sheridan, Dino Celli, Bryan Langley, Daniel Gillaugh, Manigandan Kannan, Sulochana Shrestha, Andrew Gyekenyesi

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A006, September 21–25, 2020

Paper No: GT2020-14361

DOI: https://doi.org/10.1115/GT2020-14361

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Topics: Maintenance, Rotors, Titanium

Proceedings Papers

Structural Dynamic and Inherent Damping Characterization of Additively Manufactured Airfoil Components

Andrew Goldin, Onome Scott-Emuakpor, Tommy George, Brian Runyon, Richard Cobb

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A018, September 21–25, 2020

Paper No: GT2020-14922

DOI: https://doi.org/10.1115/GT2020-14922

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Topics: Additive manufacturing, Airfoils, Damping, Structural dynamics, Vibration

Proceedings Papers

Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

Onome Scott-Emuakpor, Luke Sheridan, Brian Runyon, Tommy George

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A002, September 21–25, 2020

Paper No: GT2020-14122

DOI: https://doi.org/10.1115/GT2020-14122

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Topics: Additive manufacturing, Damping, Fatigue, Nickel alloys, Vibration

Journal Articles

Stochastic Fatigue Life Prediction Based on a Reduced Data Set

Dino Celli, M.-H. Herman Shen, Onome Scott-Emuakpor, Casey Holycross, Tommy George

J. Eng. Gas Turbines Power. March 2020, 142(3): 031017.

Paper No: GTP-19-1442

DOI: https://doi.org/10.1115/1.4045065

Published Online: February 3, 2020

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Topics: Cycles, Failure, Fatigue, Fatigue life, Stress, High cycle fatigue, Weibull distribution

Journal Articles

Assessing Additive Manufacturing Repeatability of Inherently Damped Nickel Alloy Components

Onome Scott-Emuakpor, Tommy George, Brian Runyon, Casey Holycross, Luke Sheridan, Ryan O'Hara

J. Eng. Gas Turbines Power. March 2020, 142(3): 031011.

Paper No: GTP-19-1316

DOI: https://doi.org/10.1115/1.4044314

Published Online: January 29, 2020

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Topics: Damping, Manufacturing, Additive manufacturing, Nickel alloys

Proceedings Papers

Assessing Manufacturing Repeatability of Inherently Damped Nickel Alloy Components via Forced-Response Testing

Onome Scott-Emuakpor, Tommy George, Brian Runyon, Luke Sheridan, Casey Holycross, Ryan O’Hara

Proc. ASME. GT2019, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A010, June 17–21, 2019

Paper No: GT2019-90945

DOI: https://doi.org/10.1115/GT2019-90945

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Topics: Manufacturing, Nickel alloys, Testing, Damping, Geometry, Displacement, Shear (Mechanics), Additive manufacturing, Lasers

Journal Articles

Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy-Based Fatigue Life Prediction

Dino Celli, M.-H. Herman Shen, Casey Holycross, Onome Scott-Emuakpor, Tommy George

J. Eng. Gas Turbines Power. September 2019, 141(9): 091018.

Paper No: GTP-18-1452

DOI: https://doi.org/10.1115/1.4044202

Published Online: July 22, 2019

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Topics: Fatigue, Fatigue life, Strain measurement, Stress, Cycles, Damage, Energy dissipation, Gas turbines, Aluminum

Journal Articles

Investigating Discrepancies in Vibration Bending Fatigue Behavior of Additively Manufactured Titanium 6Al-4V

Onome Scott-Emuakpor, Casey Holycross, Tommy George, Luke Sheridan, Emily Carper, Joseph Beck

J. Eng. Mater. Technol. October 2019, 141(4): 041002.

Paper No: MATS-18-1208

DOI: https://doi.org/10.1115/1.4042955

Published Online: March 12, 2019

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Topics: Fatigue, Fracture (Materials), Stress, Titanium, Vibration, Additive manufacturing, Uncertainty, Fatigue life

Proceedings Papers

Investigating Discrepancies in Vibration Bending Fatigue Behavior of Additively Manufactured Titanium 6Al-4V

Onome Scott-Emuakpor, Casey Holycross, Tommy George, Luke Sheridan, Emily Carper, Joseph Beck

Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A015, June 11–15, 2018

Paper No: GT2018-75978

DOI: https://doi.org/10.1115/GT2018-75978

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Topics: Additive manufacturing, Fatigue, Titanium, Vibration, Fatigue life, Stress, Uncertainty, Electromagnetic scattering, Density, Fracture (Materials)

Proceedings Papers

Investigating Damping Performance of Laser Powder Bed Fused Components With Unique Internal Structures

Onome Scott-Emuakpor, Tommy George, Brian Runyon, Casey Holycross, Bryan Langley, Luke Sheridan, Ryan O’Hara, Phil Johnson, Joseph Beck

Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A020, June 11–15, 2018

Paper No: GT2018-75977

DOI: https://doi.org/10.1115/GT2018-75977

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Topics: Damping, Lasers, Vibration suppression, Additive manufacturing, Design, Geometry, Internal friction, Manufacturing, Optimization, Physics

Proceedings Papers

Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy Based Fatigue Life Prediction

Dino Celli, M.-H. Herman Shen, Casey Holycross, Onome Scott-Emuakpor, Tommy George

Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT31A017, June 11–15, 2018

Paper No: GT2018-76973

DOI: https://doi.org/10.1115/GT2018-76973

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Topics: Fatigue life, Fatigue, Energy dissipation, High cycle fatigue, Aluminum, Damage, Damage assessment, Experimental characterization, Fatigue damage, Gas turbines

Proceedings Papers

Development of a Fatigue Damage and Lifing Assessment Method for Inconel 625 and Aluminum 6061-T6

Dino Celli, M.-H. Herman Shen, Tommy George, Onome Scott-Emuakpor, Casey Holycross

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT31A006, June 26–30, 2017

Paper No: GT2017-63775

DOI: https://doi.org/10.1115/GT2017-63775

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Topics: Aluminum, Fatigue damage, Fatigue, Stress, Fracture toughness, High cycle fatigue, Cycles, Damage, Fatigue failure, Fatigue life

Proceedings Papers

As-Built Geometry and Surface Finish Effects on Fatigue and Tensile Properties of Laser Fused Titanium 6Al-4V

Onome Scott-Emuakpor, Tommy George, Emily Henry, Casey Holycross, Jeff Brown

Proc. ASME. GT2017, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A002, June 26–30, 2017

Paper No: GT2017-63482

DOI: https://doi.org/10.1115/GT2017-63482

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Topics: Fatigue, Finishes, Geometry, Lasers, Tensile strength, Titanium, Additive manufacturing, Aerospace systems, Cooling, Ductility

Proceedings Papers

Regression Study on Variables Affecting Vibration Fatigue Behavior of Additive Manufactured Titanium 6Al-4V

Kyle Matissek, Onome Scott-Emuakpor, Tommy George, Casey Holycross, Thaddeus Crowe, Christopher Howard

Proc. ASME. GT2017, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A014, June 26–30, 2017

Paper No: GT2017-64049

DOI: https://doi.org/10.1115/GT2017-64049

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Topics: Additive manufacturing, Fatigue, Titanium, Vibration, Gas turbines, Stress, Surface roughness, Aerospace industry, Disasters, Fracture (Materials)

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Journal citation

NARROW

Establishing an Acceptance Criteria for Assessing Fatigue of Additive Repair Processes

Establishing an Acceptance Criteria for Assessing Fatigue of Additive Repair Processes

Discrete Element Method Simulations of Additively Manufactured Components With Integrated Particle Dampers

Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

Shape Optimization of Rectangular Plates for Vibration-Based Fatigue Testing

Structural Dynamic and Inherent Damping Characterization of Additively Manufactured Airfoil Components

Structural Integrity Assessments for Validating Directed Energy Deposition Repairs of Integrally Bladed Rotor

Structural Dynamic and Inherent Damping Characterization of Additively Manufactured Airfoil Components

Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

Stochastic Fatigue Life Prediction Based on a Reduced Data Set

Assessing Additive Manufacturing Repeatability of Inherently Damped Nickel Alloy Components

Assessing Manufacturing Repeatability of Inherently Damped Nickel Alloy Components via Forced-Response Testing

Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy-Based Fatigue Life Prediction

Investigating Discrepancies in Vibration Bending Fatigue Behavior of Additively Manufactured Titanium 6Al-4V

Investigating Discrepancies in Vibration Bending Fatigue Behavior of Additively Manufactured Titanium 6Al-4V

Investigating Damping Performance of Laser Powder Bed Fused Components With Unique Internal Structures

Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy Based Fatigue Life Prediction

Development of a Fatigue Damage and Lifing Assessment Method for Inconel 625 and Aluminum 6061-T6

As-Built Geometry and Surface Finish Effects on Fatigue and Tensile Properties of Laser Fused Titanium 6Al-4V

Regression Study on Variables Affecting Vibration Fatigue Behavior of Additive Manufactured Titanium 6Al-4V

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