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Robert L. Jackson
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Journal Articles

Rheological and Electro-Pitting Performance of Electric Vehicle Motor Greases With Various Nanoparticle Greases

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Jack R. Janik, Sudip Saha, Robert L. Jackson, German Mills
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2025, 147(5): 051110.
Paper No: TRIB-24-1351
https://doi.org/10.1115/1.4067489
Published Online: January 20, 2025
View Articletitled, Rheological and Electro-Pitting Performance of Electric Vehicle Motor Greases With Various Nanoparticle Greases
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Topics: Damage, Electric vehicles, Lubricants, Nanoparticles, Rheology, Testing, Thickening agents, Bearings, Disks, Particulate matter
Journal Articles

Electrical Contact With Dielectric Breakdown of Interfacial Gap

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Yang Xu, Yue Wu, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2025, 147(5): 051109.
Paper No: TRIB-24-1389
https://doi.org/10.1115/1.4067373
Published Online: January 17, 2025
View Articletitled, Electrical Contact With Dielectric Breakdown of Interfacial Gap
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Topics: Boundary-value problems, Breakdown (Electricity), Computer simulation, Contact mechanics, Contact resistance, Current density, Electrodes, Pressure, Separation (Technology), Surface roughness
Journal Articles

A Statistical Prediction of Electrical Discharge Initiation and Semi-Analytical Transient Mixed Lubrication Model of a Rolling Element

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Robert L. Jackson, Sudip Saha, Jack R. Janik
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2025, 147(5): 051103.
Paper No: TRIB-24-1196
https://doi.org/10.1115/1.4066520
Published Online: November 8, 2024
View Articletitled, A Statistical Prediction of Electrical Discharge Initiation and Semi-Analytical Transient Mixed Lubrication Model of a Rolling Element
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Topics: Damage, Film thickness, Lubrication, Surface roughness, Bearings, Transients (Dynamics), Rolling bearings, Lubricants, Flow (Dynamics)
Journal Articles

In Memoriam: Tribute to President Michael R. Lovell

Free
Pradeep L. Menezes, Michael Khonsari, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: In Memoriam
J. Tribol. September 2024, 146(9): 090101.
Paper No: TRIB-24-1213
https://doi.org/10.1115/1.4065832
Published Online: July 19, 2024
View Articletitled, In Memoriam: Tribute to President Michael R. Lovell
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Topics: Engineering teachers, Engineers, Leadership, Tribology, Mechanical engineering
Journal Articles

Simplified Formulation for Bush, Gibson, and Thomas Model

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Yang Xu, Shuo Wu, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. July 2024, 146(7): 074502.
Paper No: TRIB-23-1458
https://doi.org/10.1115/1.4065103
Published Online: April 3, 2024
View Articletitled, Simplified Formulation for Bush, Gibson, and Thomas Model
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Topics: Stress, Surface roughness, Stochastic processes, Density, Contact mechanics
Journal Articles

A Transformative Time for Tribology

Free
Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Editorial
J. Tribol. May 2024, 146(5): 050201.
Paper No: TRIB-24-1036
https://doi.org/10.1115/1.4064758
Published Online: February 23, 2024
View Articletitled, A Transformative Time for Tribology
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Topics: Tribology
Journal Articles

Modeling of Flash Temperature for Elastic Sliding Contact of Single Micro-Asperity Pair

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Zhe Wu, Yuying Zhang, Yang Xu, Desuan Jie, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. January 2024, 146(1): 011702.
Paper No: TRIB-23-1194
https://doi.org/10.1115/1.4063334
Published Online: September 27, 2023
View Articletitled, Modeling of Flash Temperature for Elastic Sliding Contact of Single Micro-Asperity Pair
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Topics: Finite element model, Surface roughness, Temperature, Finite element methods, Friction, Pressure
Journal Articles

Electrical Contact During a Rolling Vibratory Motion Considering Mixed Lubrication

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Robert L. Jackson, Santosh Angadi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2023, 145(8): 082201.
Paper No: TRIB-22-1378
https://doi.org/10.1115/1.4062295
Published Online: May 2, 2023
View Articletitled, Electrical Contact During a Rolling Vibratory Motion Considering Mixed Lubrication
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Topics: Contact resistance, Lubricants, Lubrication, Surface roughness, Film thickness, Vibration, Viscosity, Springs
Journal Articles

Discussion of  “Ghaednia, H., Wang, X., Saha, S., Xu, Y., Sharma, A., & Jackson, R. L. (2017). A Review of Elastic–Plastic Contact Mechanics. Applied Mechanics Reviews, 69 (6).”

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Robert L. Jackson
Journal: Applied Mechanics Reviews
Publisher: ASME
Article Type: Discussions
Appl. Mech. Rev. July 2022, 74(4): 045501.
Paper No: AMR-22-1041
https://doi.org/10.1115/1.4055137
Published Online: August 29, 2022
View Articletitled, Discussion of  “Ghaednia, H., Wang, X., Saha, S., Xu, Y., Sharma, A., & Jackson, R. L. (2017). A Review of Elastic–Plastic Contact Mechanics. Applied Mechanics Reviews, 69 (6).”
Open the PDF for Discussion of  “Ghaednia, H., Wang, X., Saha, S., Xu, Y., Sharma, A., & Jackson, R. L. (2017). A Review of Elastic–Plastic Contact Mechanics. Applied Mechanics Reviews, 69 (6).” in another window
Topics: Contact mechanics, Surface roughness, Engineering mechanics, Fractals, Stress, Modeling
Journal Articles

Comparison Between the Hyperelastic Behavior of Fresh and Frozen Equine Articular Cartilage in Various Joints

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Hyeon Lee, William D. Campbell, Kelcie M. Theis, Margaret E. Canning, Hannah Y. Ennis, Robert L. Jackson, R. Reid Hanson
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. February 2020, 142(2): 024501.
Paper No: BIO-18-1476
https://doi.org/10.1115/1.4044031
Published Online: October 7, 2019
View Articletitled, Comparison Between the Hyperelastic Behavior of Fresh and Frozen Equine Articular Cartilage in Various Joints
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Topics: Cartilage, Materials properties, Stress, Fluids
Journal Articles

Strain Hardening From Elastic–Perfectly Plastic to Perfectly Elastic Flattening Single Asperity Contact

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Hamid Ghaednia, Matthew R. W. Brake, Michael Berryhill, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. March 2019, 141(3): 031402.
Paper No: TRIB-18-1162
https://doi.org/10.1115/1.4041537
Published Online: November 21, 2018
View Articletitled, Strain Hardening From Elastic–Perfectly Plastic to Perfectly Elastic Flattening Single Asperity Contact
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Topics: Deformation, Work hardening
Journal Articles

A Solution of Rigid Perfectly Plastic Cylindrical Indentation in Plane Strain and Comparison to Elastic-Plastic Finite Element Predictions With Hardening

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Robert L. Jackson
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Technical Briefs
J. Appl. Mech. February 2018, 85(2): 024501.
Paper No: JAM-17-1300
https://doi.org/10.1115/1.4038495
Published Online: December 6, 2017
View Articletitled, A Solution of Rigid Perfectly Plastic Cylindrical Indentation in Plane Strain and Comparison to Elastic-Plastic Finite Element Predictions With Hardening
Open the PDF for A Solution of Rigid Perfectly Plastic Cylindrical Indentation in Plane Strain and Comparison to Elastic-Plastic Finite Element Predictions With Hardening in another window
Topics: Cylinders, Deformation, Finite element analysis, Finite element methods, Finite element model, Hardening, Plane strain, Pressure, Yield strength, Work hardening
Journal Articles

A Review of Elastic–Plastic Contact Mechanics

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Hamid Ghaednia, Xianzhang Wang, Swarna Saha, Yang Xu, Aman Sharma, Robert L. Jackson
Journal: Applied Mechanics Reviews
Publisher: ASME
Article Type: Review Articles
Appl. Mech. Rev. November 2017, 69(6): 060804.
Paper No: AMR-16-1072
https://doi.org/10.1115/1.4038187
Published Online: November 14, 2017
View Articletitled, A Review of Elastic–Plastic Contact Mechanics
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Topics: Deformation, Finite element model, Pressure, Stress, Surface roughness, Yield strength, Finite element analysis, Finite element methods, Tangential loading, Geometry
Journal Articles

Periodic Contact Problems in Plane Elasticity: The Fracture Mechanics Approach

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Yang Xu, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2018, 140(1): 011404.
Paper No: TRIB-17-1114
https://doi.org/10.1115/1.4036920
Published Online: August 2, 2017
View Articletitled, Periodic Contact Problems in Plane Elasticity: The Fracture Mechanics Approach
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Topics: Contact mechanics, Fracture (Materials), Fracture mechanics, Stress, Traction, Shear (Mechanics), Boundary-value problems, Shear stress
Journal Articles

Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime

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Michele Ciavarella, Yang Xu, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2018, 140(1): 011402.
Paper No: TRIB-16-1401
https://doi.org/10.1115/1.4036915
Published Online: July 21, 2017
View Articletitled, Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime
Open the PDF for Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime in another window
Topics: Adhesives, Pressure, Surface roughness, Adhesion
Journal Articles

Elastic Contact Between a Geometrically Anisotropic Bisinusoidal Surface and a Rigid Base

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Yang Xu, Amir Rostami, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2015, 137(2): 021402.
Paper No: TRIB-14-1210
https://doi.org/10.1115/1.4029537
Published Online: April 1, 2015
View Articletitled, Elastic Contact Between a Geometrically Anisotropic Bisinusoidal Surface and a Rigid Base
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Topics: Anisotropy, Finite element model, Fracture (Materials), Pressure, Stress, Wavelength, Contact mechanics, Displacement
Journal Articles

Predicting the Permanent Deformation After the Impact of a Rod With a Flat Surface

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Hamid Ghaednia, Dan B. Marghitu, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2015, 137(1): 011403.
Paper No: TRIB-13-1249
https://doi.org/10.1115/1.4028709
Published Online: October 23, 2014
View Articletitled, Predicting the Permanent Deformation After the Impact of a Rod With a Flat Surface
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Topics: Deformation, Finite element model
Journal Articles

Equine Articular Cartilage Stiffness Determination Using Indentation

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Hyeon Lee, Kelcie M. Theis, Robert L. Jackson, R. Reid Hanson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2015, 137(1): 011201.
Paper No: TRIB-13-1246
https://doi.org/10.1115/1.4028285
Published Online: October 3, 2014
View Articletitled, Equine Articular Cartilage Stiffness Determination Using Indentation
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Topics: Cartilage, Stiffness
Journal Articles

The Effect of Nanoparticles on the Real Area of Contact, Friction, and Wear

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Hamed Ghaednia, Robert L. Jackson
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. October 2013, 135(4): 041603.
Paper No: TRIB-12-1187
https://doi.org/10.1115/1.4024297
Published Online: August 6, 2013
View Articletitled, The Effect of Nanoparticles on the Real Area of Contact, Friction, and Wear
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Topics: Friction, Nanoparticles, Particulate matter, Surface roughness, Wear, Lubricants
Journal Articles

A Surface Roughness Comparison of Cartilage in Different Types of Synovial Joints

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Patrick A. Smyth, Rebecca E. Rifkin, Robert L. Jackson, R. Reid Hanson
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. February 2012, 134(2): 021006.
https://doi.org/10.1115/1.4005934
Published Online: March 19, 2012
View Articletitled, A Surface Roughness Comparison of Cartilage in Different Types of Synovial Joints
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Topics: Cartilage, Surface roughness