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Leon M. Keer
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Journal Articles

Explicit Analytical Solutions for the Complete Elastic Field Produced by an Ellipsoidal Thermal Inclusion in a Semi-Infinite Space

Ding Lyu, Xiangning Zhang, Pu Li, Dahui Luo, Yumei Hu, Xiaoqing Jin, Liying Zhang, Leon M. Keer
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. May 2018, 85(5): 051005.
Paper No: JAM-18-1022
https://doi.org/10.1115/1.4039373
Published Online: March 7, 2018
View Article titled, Explicit Analytical Solutions for the Complete Elastic Field Produced by an Ellipsoidal Thermal Inclusion in a Semi-Infinite Space
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Topics: Displacement, Stress, Elastic half space, Shear (Mechanics)
Journal Articles

A Review of Recent Research on the Mechanical Behavior of Lead-Free Solders

Yao Yao, Xu Long, Leon M. Keer
Journal: Applied Mechanics Reviews
Publisher: ASME
Article Type: Review Articles
Appl. Mech. Rev. July 2017, 69(4): 040802.
Paper No: AMR-17-1013
https://doi.org/10.1115/1.4037462
Published Online: August 16, 2017
View Article titled, A Review of Recent Research on the Mechanical Behavior of Lead-Free Solders
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Topics: Creep, Damage, Electrodiffusion, Fatigue, Fatigue life, Lead-free solders, Solder joints, Solders, Stress, Temperature
Journal Articles

On the Displacement of a Two-Dimensional Eshelby Inclusion of Elliptic Cylindrical Shape

Xiaoqing Jin, Xiangning Zhang, Pu Li, Zheng Xu, Yumei Hu, Leon M. Keer
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Technical Briefs
J. Appl. Mech. July 2017, 84(7): 074501.
Paper No: JAM-17-1217
https://doi.org/10.1115/1.4036820
Published Online: June 7, 2017
View Article titled, On the Displacement of a Two-Dimensional Eshelby Inclusion of Elliptic Cylindrical Shape
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Topics: Displacement, Tensors
Journal Articles

Explicit Analytical Solutions for a Complete Set of the Eshelby Tensors of an Ellipsoidal Inclusion

Xiaoqing Jin, Ding Lyu, Xiangning Zhang, Qinghua Zhou, Qian Wang, Leon M. Keer
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. December 2016, 83(12): 121010.
Paper No: JAM-16-1347
https://doi.org/10.1115/1.4034705
Published Online: October 5, 2016
View Article titled, Explicit Analytical Solutions for a Complete Set of the Eshelby Tensors of an Ellipsoidal Inclusion
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Topics: Tensors, Stress, Displacement
Journal Articles

Spherical Elastic–Plastic Contact Model for Power-Law Hardening Materials Under Combined Normal and Tangential Loads

Bin Zhao, Song Zhang, Leon M. Keer
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. March 2017, 139(2): 021401.
Paper No: TRIB-15-1395
https://doi.org/10.1115/1.4033647
Published Online: August 11, 2016
View Article titled, Spherical Elastic–Plastic Contact Model for Power-Law Hardening Materials Under Combined Normal and Tangential Loads
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Topics: Displacement, Hardening, Stress, Tangential loading, Pressure, Finite element model, Junctions, Contact mechanics
Journal Articles

Maximum von Mises Stress and Its Location in Trilayer Materials in Contact

Chengjiao Yu, Zhanjiang Wang, Geng Liu, Leon M. Keer, Q. Jane Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. October 2016, 138(4): 041402.
Paper No: TRIB-15-1201
https://doi.org/10.1115/1.4032888
Published Online: July 8, 2016
View Article titled, Maximum von Mises Stress and Its Location in Trilayer Materials in Contact
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Topics: Coatings, Stress, Friction
Journal Articles

Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling-Contact Fatigue Life

Qinghua Zhou, Lechun Xie, Xiaoqing Jin, Zhanjiang Wang, Jiaxu Wang, Leon M. Keer, Qian Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2015, 137(1): 011402.
Paper No: TRIB-14-1072
https://doi.org/10.1115/1.4028406
Published Online: September 24, 2014
View Article titled, Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling-Contact Fatigue Life
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Topics: Composite materials, Life testing, Titanium, Computer simulation, Rolling contact, Enterprise information management, Stress, Fatigue life, Computation
Proceedings Papers

Numerical Modeling of Partial Slip Contact Involving Inhomogeneous Materials

Zhanjiang Wang, Xiaoqing Jin, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 301-303, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61108
https://doi.org/10.1115/IJTC2012-61108
View Paper titled, Numerical Modeling of Partial Slip Contact Involving Inhomogeneous Materials
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Topics: Computer simulation, Displacement, Stress, Algorithms, Elastic half space, Fast Fourier transforms
Proceedings Papers

Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling Contact Fatigue Life

Qinghua Zhou, Xiaoqing Jin, Zhanjiang Wang, Jiaxu Wang, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 313-315, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61156
https://doi.org/10.1115/IJTC2012-61156
View Paper titled, Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling Contact Fatigue Life
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Topics: Computer simulation, Fatigue life, Rolling contact, Finite element methods, Enterprise information management, Fatigue, Gaussian distribution, Materials properties, Numerical analysis
Proceedings Papers

Efficient Numerical Modeling of Hertzian Line Contact for Material With Inhomogeneities

Xiaoqing Jin, Zhanjiang Wang, Qinghua Zhou, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 321-323, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61168
https://doi.org/10.1115/IJTC2012-61168
View Paper titled, Efficient Numerical Modeling of Hertzian Line Contact for Material With Inhomogeneities
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Topics: Algorithms, Computer simulation, Fast Fourier transforms, Materials properties, Numerical analysis, Shapes, Stress
Journal Articles

Novel Model for Partial-Slip Contact Involving a Material With Inhomogeneity

Zhanjiang Wang, Xiaoqing Jin, Leon M. Keer, Qian Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. October 2013, 135(4): 041401.
Paper No: TRIB-12-1189
https://doi.org/10.1115/1.4024548
Published Online: June 24, 2013
View Article titled, Novel Model for Partial-Slip Contact Involving a Material With Inhomogeneity
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Topics: Displacement, Fast Fourier transforms, Pressure, Shear (Mechanics), Stress, Tangential loading, Traction, Finite element methods
Journal Articles

An Efficient Numerical Method With a Parallel Computational Strategy for Solving Arbitrarily Shaped Inclusions in Elastoplastic Contact Problems

Zhanjiang Wang, Xiaoqing Jin, Qinghua Zhou, Xiaolan Ai, Leon M. Keer, Qian Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. July 2013, 135(3): 031401.
Paper No: TRIB-12-1166
https://doi.org/10.1115/1.4023948
Published Online: March 28, 2013
View Article titled, An Efficient Numerical Method With a Parallel Computational Strategy for Solving Arbitrarily Shaped Inclusions in Elastoplastic Contact Problems
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Topics: Stress, Contact mechanics
Proceedings Papers

A Fast Method for Solving Contact Plasticity in a Half Space

Zhanjiang Wang, Xiaoqing Jin, Shuangbiao Liu, Leon M. Keer, Jian Cao, Q. Jane Wang
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 293-294, October 24–26, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61147
https://doi.org/10.1115/IJTC2011-61147
View Paper titled, A Fast Method for Solving Contact Plasticity in a Half Space
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Topics: Plasticity, Fast Fourier transforms, Mirrors, Residual stresses
Journal Articles

A Closed-Form Solution for the Eshelby Tensor and the Elastic Field Outside an Elliptic Cylindrical Inclusion

Xiaoqing Jin, Leon M. Keer, Qian Wang
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. May 2011, 78(3): 031009.
https://doi.org/10.1115/1.4003238
Published Online: February 15, 2011
View Article titled, A Closed-Form Solution for the Eshelby Tensor and the Elastic Field Outside an Elliptic Cylindrical Inclusion
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Topics: Tensors, Micromechanics (Engineering)
Proceedings Papers

Analytical Solution for the Stress Field of Eshelby’s Inclusion of Polygonal Shape

Xiaoqing Jin, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 487-489, October 19–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15211
https://doi.org/10.1115/IJTC2009-15211
View Paper titled, Analytical Solution for the Stress Field of Eshelby’s Inclusion of Polygonal Shape
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Topics: Shapes, Stress
Proceedings Papers

Stress Field Induced by a Stringer of Inhomogeneities in a Half Space

Kun Zhou, Leon M. Keer, Q. Jane Wang, Xiaolan Ai, Krich Sawamiphakdi, Peter Glaws
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 337-339, October 19–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15138
https://doi.org/10.1115/IJTC2009-15138
View Paper titled, Stress Field Induced by a Stringer of Inhomogeneities in a Half Space
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Topics: Stress, Corners (Structural elements), Friction, Stress concentration, Surfaces (Materials)
Proceedings Papers

Sliding Contact of Elastically Dissimilar Periodic Profiles

Joseph M. Block, Leon M. Keer
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 645-647, October 20–22, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2008-71271
https://doi.org/10.1115/IJTC2008-71271
View Paper titled, Sliding Contact of Elastically Dissimilar Periodic Profiles
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Topics: Coulombs, Elasticity, Friction
Proceedings Papers

Note on the FFT Based Computational Code and Its Application

Xiaoqing Jin, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 609-611, October 20–22, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2008-71216
https://doi.org/10.1115/IJTC2008-71216
View Paper titled, Note on the FFT Based Computational Code and Its Application
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Topics: Algorithms, Computer simulation, Contact mechanics, Fast Fourier transforms, Tribology
Proceedings Papers

Behavior of a Fluid Filled Subsurface Crack Under Moving Hertzian Loading

Xiaoqing Jin, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 629-631, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44449
https://doi.org/10.1115/IJTC2007-44449
View Paper titled, Behavior of a Fluid Filled Subsurface Crack Under Moving Hertzian Loading
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Topics: Fluids, Fracture (Materials), Stress, Crack propagation, Fracture toughness, Cracking (Materials), Dislocations, Fluid pressure, Fracture (Process), Fracture mechanics
Journal Articles

A Multilevel Model for Elastic-Plastic Contact Between a Sphere and a Flat Rough Surface

F. Steven Wang, Joseph M. Block, W. Wayne Chen, Ashlie Martini, Kun Zhou, Leon M. Keer, Q. Jane Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 021409.
https://doi.org/10.1115/1.3085944
Published Online: March 9, 2009
View Article titled, A Multilevel Model for Elastic-Plastic Contact Between a Sphere and a Flat Rough Surface
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Topics: Deformation, Pressure, Stress, Surface roughness, Simulation