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Journal Articles

Interfacial Compounds Characteristic and Its Reliability Effects on SAC305 Microjoints in Flip Chip Assemblies

Ye Tian, Ning Ren, Xiaoxia Jian, Tie Geng, Yiping Wu
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. September 2018, 140(3): 031007.
Paper No: EP-18-1009
DOI: https://doi.org/10.1115/1.4040298
Published Online: June 11, 2018
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Topics: Flip-chip assemblies, Reliability, Soldering, Tin, Solders, Finite element analysis, Fracture (Materials), Intermetallic compounds
Journal Articles

Investigation of Shear-Thinning Behavior on Film Thickness and Friction Coefficient of Polyalphaolefin Base Fluids With Varying Olefin Copolymer Content

Thomas J. Zolper, Yifeng He, Massimiliano Delferro, Paul Shiller, Gary Doll, Babak LotfizadehDehkordi, Ning Ren, Frances Lockwood, Tobin J. Marks, Yip-Wah Chung, Aaron Greco, Ali Erdemir, Qian Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. March 2017, 139(2): 021504.
Paper No: TRIB-16-1030
DOI: https://doi.org/10.1115/1.4033716
Published Online: August 11, 2016
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Topics: Density, Film thickness, Fluids, Friction, Molecular weight, Pressure, Shear (Mechanics), Viscosity, Copolymers, Shear stress
Proceedings Papers

Modeling and Analysis of Mixed Lubrication in Automotive Valve Train

Ning Ren, Frances E. Lockwood, Ilya Piraner, Amit Gabale
Proc. ASME. ICEF2014, Volume 2: Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development; Keynote Papers, V002T07A008, October 19–22, 2014
Paper No: ICEF2014-5475
DOI: https://doi.org/10.1115/ICEF2014-5475
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Topics: Lubrication, Modeling, Trains, Valves, Engines, Fuel efficiency, Oils, Petroleum, Viscosity, Vehicles
Journal Articles

Plasto-Elastohydrodynamic Lubrication in Point Contacts for Surfaces With Three-Dimensional Sinusoidal Waviness and Real Machined Roughness

Tao He, Ning Ren, Dong Zhu, Jiaxu Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. July 2014, 136(3): 031504.
Paper No: TRIB-13-1215
DOI: https://doi.org/10.1115/1.4027478
Published Online: May 7, 2014
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Topics: Deformation, Lubrication, Pressure, Stress, Surface roughness, Film thickness, Hardening
Journal Articles

Mixed Elastohydrodynamic Lubrication in Finite Roller Contacts Involving Realistic Geometry and Surface Roughness

Dong Zhu, Jiaxu Wang, Ning Ren, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Elastohydrodynamic Lubrication
J. Tribol. January 2012, 134(1): 011504.
DOI: https://doi.org/10.1115/1.4005952
Published Online: March 6, 2012
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Topics: Corners (Structural elements), Geometry, Rollers, Stress, Surface roughness, Film thickness, Elastohydrodynamic lubrication
Journal Articles

Three-Dimensional Plasto-Elastohydrodynamic Lubrication (PEHL) for Surfaces with Irregularities

Ning Ren, Dong Zhu, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031502.
DOI: https://doi.org/10.1115/1.4004100
Published Online: July 7, 2011
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Topics: Deformation, Lubrication, Pressure, Stress, Surface roughness, Film thickness
Journal Articles

Plasto-Elastohydrodynamic Lubrication (PEHL) in Point Contacts

Ning Ren, Dong Zhu, W. W. Chen, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 031501.
DOI: https://doi.org/10.1115/1.4001813
Published Online: June 24, 2010
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Topics: Deformation, Film thickness, Lubricants, Lubrication, Pressure, Stress, Work hardening, Surface roughness
Journal Articles

Pitting Life Prediction Based on a 3D Line Contact Mixed EHL Analysis and Subsurface von Mises Stress Calculation

Dong Zhu, Ning Ren, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. October 2009, 131(4): 041501.
DOI: https://doi.org/10.1115/1.3195040
Published Online: September 25, 2009
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Topics: Fatigue life, Gears, Lubrication, Pressure, Stress, Surface roughness, Failure, Fatigue, Reliability
Proceedings Papers

A Three-Dimensional Deterministic Model for Rough Surface Line-Contact EHL Problems

Ning Ren, W. Wayne Chen, Dong Zhu, Yuchuan Liu, Q. Jane Wang
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 191-192, October 22–24, 2007
Paper No: IJTC2007-44476
DOI: https://doi.org/10.1115/IJTC2007-44476
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Topics: Surface roughness, Flow (Dynamics), Lubricants
Journal Articles

A Three-Dimensional Deterministic Model for Rough Surface Line-Contact EHL Problems

Ning Ren, Dong Zhu, W. Wayne Chen, Yuchuan Liu, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011501.
DOI: https://doi.org/10.1115/1.2991291
Published Online: December 2, 2008
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Topics: Film thickness, Surface roughness, Lubrication
Proceedings Papers

Characterizing the Initial Spray From Fire Suppression Devices

Ning Ren, Andrew Blum, Di Wu, Andre´ W. Marshall
Proc. ASME. IMECE2006, Heat Transfer, Volume 2, 109-117, November 5–10, 2006
Paper No: IMECE2006-15494
DOI: https://doi.org/10.1115/IMECE2006-15494
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Topics: Fire, Sprays, Water, Computational fluid dynamics, Ejectors, Fluids, Geometry, Model development, Modeling, Particulate matter
Journal Articles

The Effects of Surface Roughness and Topography on the Contact Behavior of Elastic Bodies

Ning Ren, Si C. Lee
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. October 1994, 116(4): 804–810.
DOI: https://doi.org/10.1115/1.2927335
Published Online: October 1, 1994
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Topics: Surface roughness, Engineering simulation, Simulation, Anisotropy, Composite materials, Friction, Lubrication, Pressure, Wear
Journal Articles

Closure to “Discussion of ‘The Effects of Surface Roughness and Topography on the Contact Behavior of Elastic Bodies’” (1994, ASME J. Tribol., 116, p. 810)

Ning Ren, Si C. Lee
Journal: Journal of Tribology
Article Type: Discussions
J. Tribol. October 1994, 116(4): 810–811.
DOI: https://doi.org/10.1115/1.2927337
Published Online: October 1, 1994
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Topics: Surface roughness
Journal Articles

Contact Simulation of Three-Dimensional Rough Surfaces Using Moving Grid Method

Ning Ren, Si C. Lee
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. October 1993, 115(4): 597–601.
DOI: https://doi.org/10.1115/1.2921681
Published Online: October 1, 1993
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Topics: Simulation, Surface roughness, Computers, Contact mechanics, Deformation, Pressure, Storage