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Journal Articles

Measuring Relative Motion to Develop an Interface that Off-loads the Lower Limb

Accepted Manuscript
Brett Johnson, Sarah Pesquera, Joshua Childress, Jacqueline-Rae Villanueva, Stefanie M Shiels, W. Lee Childers
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices.
Paper No: MED-24-1034
https://doi.org/10.1115/1.4067347
Published Online: December 7, 2024
View Article titled, Measuring Relative Motion to Develop an Interface that Off-loads the Lower Limb
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Topics: Stress, Fracture (Materials), Fracture (Process), Orthotics, Tendons, Bearings, Design, Testing, Wounds
Proceedings Papers

Overcoming Challenges for Quantitative Risk Modeling Using Machine Learned Data Correlations and Predictive Modeling

Stephen F. Biagiotti, Jr, Dan Williams, Sergiy Kondratyuk, Brett Johnson
Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A004, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87236
https://doi.org/10.1115/IPC2022-87236
View Paper titled, Overcoming Challenges for Quantitative Risk Modeling Using Machine Learned Data Correlations and Predictive Modeling
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Topics: Machine learning, Machinery, Modeling, Risk
Journal Articles

Systematic Assessment of Prosthesis Stiffness on User Biomechanics Using the Lower Leg Trajectory Error Framework and Its Implication for the Design and Evaluation of Ankle-Foot Prostheses

Victor Prost, W. Brett Johnson, Jenny A. Kent, Matthew J. Major, Amos G. Winter, V
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. April 2023, 145(4): 041002.
Paper No: BIO-22-1040
https://doi.org/10.1115/1.4056137
Published Online: December 5, 2022
View Article titled, Systematic Assessment of Prosthesis Stiffness on User Biomechanics Using the Lower Leg Trajectory Error Framework and Its Implication for the Design and Evaluation of Ankle-Foot Prostheses
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Topics: Artificial limbs, Design, Engineering prototypes, Errors, Kinematics, Prostheses, Stiffness, Trajectories (Physics), Biomechanics, Dynamics (Mechanics)
Includes: Supplementary data
Journal Articles

Design and Evaluation of a High-Performance, Low-Cost Prosthetic Foot for Developing Countries

W. Brett Johnson, Victor Prost, Pooja Mukul, Amos G. Winter V
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. March 2023, 17(1): 011003.
Paper No: MED-22-1108
https://doi.org/10.1115/1.4055967
Published Online: November 9, 2022
View Article titled, Design and Evaluation of a High-Performance, Low-Cost Prosthetic Foot for Developing Countries
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Topics: Artificial limbs, Design, Developing nations, Engineering prototypes, Keel, Prostheses, Stiffness, Testing, Manufacturing, Biomechanics
Journal Articles

Design of a Four-Bar Latch Mechanism and a Shear-Based Rotary Viscous Damper for Single-Axis Prosthetic Knees

V. N. Murthy Arelekatti, Nina T. Petelina, W. Brett Johnson, Matthew J. Major, Amos G. Winter V
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Research Papers
J. Mechanisms Robotics. June 2022, 14(3): 031011.
Paper No: JMR-21-1003
https://doi.org/10.1115/1.4052804
Published Online: November 18, 2021
View Article titled, Design of a Four-Bar Latch Mechanism and a Shear-Based Rotary Viscous Damper for Single-Axis Prosthetic Knees
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Topics: Artificial limbs, Dampers, Damping, Design, Knee, Stability
Journal Articles

Experimental Demonstration of the Lower Leg Trajectory Error Framework Using Physiological Data as Inputs

Kathryn M. Olesnavage, Victor Prost, William Brett Johnson, Matthew J. Major, Amos G. Winter, V
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. March 2021, 143(3): 031003.
Paper No: BIO-19-1534
https://doi.org/10.1115/1.4048643
Published Online: December 10, 2020
View Article titled, Experimental Demonstration of the Lower Leg Trajectory Error Framework Using Physiological Data as Inputs
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Topics: Artificial limbs, Constitutive equations, Design, Errors, Kinematics, Physiology, Stiffness, Trajectories (Physics), Knee
Proceedings Papers

Complex Circumferential Stress Corrosion Cracking: Identification, Sizing and Consequences for the Integrity Management Program

Brett Johnson, Bereket Tesfaye, Cory Wargacki, Thomas Hennig, Ernesto Suarez
Proc. ASME. IPC2018, Volume 1: Pipeline and Facilities Integrity, V001T03A070, September 24–28, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IPC2018-78564
https://doi.org/10.1115/IPC2018-78564
View Paper titled, Complex Circumferential Stress Corrosion Cracking: Identification, Sizing and Consequences for the Integrity Management Program
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Topics: Corrosion, Cracking (Materials), Fracture (Process), Hoop stress, Fracture (Materials), Pipelines, Inspection, Arches, Collaboration, Decision making
Proceedings Papers

Analyzing the Effect of Air Capacitor Turbocharging Single Cylinder Engines on Fuel Economy and Emissions Through Modeling and Experimentation

Michael R. Buchman, W. Brett Johnson, Amos G. Winter, V
Proc. ASME. IDETC-CIE2018, Volume 3: 20th International Conference on Advanced Vehicle Technologies; 15th International Conference on Design Education, V003T01A043, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-85934
https://doi.org/10.1115/DETC2018-85934
View Paper titled, Analyzing the Effect of Air Capacitor Turbocharging Single Cylinder Engines on Fuel Economy and Emissions Through Modeling and Experimentation
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Topics: Capacitors, Corporate average fuel economy, Emissions, Fuel efficiency, Modeling, Single-cylinder engines, Turbochargers, Compressors, Engines, Cylinders
Proceedings Papers

Design of a Passive, Shear-Based Rotary Hydraulic Damper for Single-Axis Prosthetic Knees

V. N. Murthy Arelekatti, Nina T. Petelina, W. Brett Johnson, Amos G. Winter, V, Matthew J. Major
Proc. ASME. IDETC-CIE2018, Volume 5A: 42nd Mechanisms and Robotics Conference, V05AT07A064, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-85962
https://doi.org/10.1115/DETC2018-85962
View Paper titled, Design of a Passive, Shear-Based Rotary Hydraulic Damper for Single-Axis Prosthetic Knees
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Topics: Artificial limbs, Dampers, Design, Knee, Shear (Mechanics), Damping, Engineering prototypes, Torque, Developing nations, Die cutting
Journal Articles

Passive Prosthetic Foot Shape and Size Optimization Using Lower Leg Trajectory Error

Kathryn M. Olesnavage, Victor Prost, William Brett Johnson, Amos G. Winter, V
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. October 2018, 140(10): 102302.
Paper No: MD-17-1741
https://doi.org/10.1115/1.4040779
Published Online: July 31, 2018
View Article titled, Passive Prosthetic Foot Shape and Size Optimization Using Lower Leg Trajectory Error
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Topics: Artificial limbs, Design, Errors, Finite element analysis, Knee, Optimization, Shapes, Stress, Trajectories (Physics), Physiology
Journal Articles

Design and Testing of a Prosthetic Foot With Interchangeable Custom Springs for Evaluating Lower Leg Trajectory Error, an Optimization Metric for Prosthetic Feet

Victor Prost, Kathryn M. Olesnavage, W. Brett Johnson, Matthew J. Major, Amos G. Winter, V
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Research-Article
J. Mechanisms Robotics. April 2018, 10(2): 021010.
Paper No: JMR-17-1297
https://doi.org/10.1115/1.4039342
Published Online: March 2, 2018
View Article titled, Design and Testing of a Prosthetic Foot With Interchangeable Custom Springs for Evaluating Lower Leg Trajectory Error, an Optimization Metric for Prosthetic Feet
Open the PDF for Design and Testing of a Prosthetic Foot With Interchangeable Custom Springs for Evaluating Lower Leg Trajectory Error, an Optimization Metric for Prosthetic Feet in another window
Topics: Artificial limbs, Design, Errors, Optimization, Springs, Stiffness, Testing, Trajectories (Physics), Physiology