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Proceedings Papers

High Strain Rate Normal Indentation of Ceramics: Implications for Material Removal Mechanisms

Ghatu Subhash, Brian J. Koeppel, Richard J. Anton, Yonggang Y. Huang, Abhijit Chandra
Proc. ASME. IMECE97, Composites and Functionally Graded Materials, 417-424, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0695
https://doi.org/10.1115/IMECE1997-0695
View Paper titled, High Strain Rate Normal Indentation of Ceramics: Implications for Material Removal Mechanisms
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Topics: Ceramics, Dynamic testing (Materials), Cracking (Materials), Failure, Fracture (Process), Fracture mechanics, Grinding, Stress
Proceedings Papers

Dynamic Indentation Hardness of Metals and its Implications to High Speed Machining

Ghatu Subhash, Brian J. Koeppel, Abhijit Chandra, Yonggang Y. Huang
Proc. ASME. IMECE97, Manufacturing Science and Engineering: Volume 2, 69-74, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-1137
https://doi.org/10.1115/IMECE1997-1137
View Paper titled, Dynamic Indentation Hardness of Metals and its Implications to High Speed Machining
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Topics: High speed machining, Metals, Crystal structure, Hardness testers
Journal Articles

Coupled Electro-Thermo-Mechanical Simulation for Multiple Pellet Fabrication Using Spark Plasma Sintering

Bijan Nili, Ghatu Subhash, James S. Tulenko
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research-Article
J. Manuf. Sci. Eng. May 2018, 140(5): 051010.
Paper No: MANU-17-1443
https://doi.org/10.1115/1.4038295
Published Online: March 6, 2018
View Article titled, Coupled Electro-Thermo-Mechanical Simulation for Multiple Pellet Fabrication Using Spark Plasma Sintering
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Topics: Manufacturing, Sintering, Cavities, Temperature
Journal Articles

Extended Hertz Theory of Contact Mechanics for Case-Hardened Steels With Implications for Bearing Fatigue Life

Nikhil D. Londhe, Nagaraj K. Arakere, Ghatu Subhash
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. March 2018, 140(2): 021401.
Paper No: TRIB-16-1399
https://doi.org/10.1115/1.4037359
Published Online: September 29, 2017
View Article titled, Extended Hertz Theory of Contact Mechanics for Case-Hardened Steels With Implications for Bearing Fatigue Life
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Topics: Bearings, Elastic moduli, Fatigue life, Pressure, Steel, Stress, Contact mechanics
Journal Articles

A New Approach Towards Life Prediction of Case Hardened Bearing Steels Subjected to Rolling Contact Fatigue

Abir Bhattacharyya, Nikhil Londhe, Nagaraj Arakere, Ghatu Subhash
Journal: Materials Performance and Characterization
Publisher: ASTM International
Article Type: Research-Article
Matls. Perf. Charact.. October 2017, 6(4): 656–677.
Paper No: MPC20160099
https://doi.org/10.1520/MPC20160099
Published Online: September 12, 2017
View Article titled, A New Approach Towards Life Prediction of Case Hardened Bearing Steels Subjected to Rolling Contact Fatigue
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Journal Articles

Influence of Residual Stress and Temperature on the Cyclic Hardening Response of M50 High-Strength Bearing Steel Subjected to Rolling Contact Fatigue

Abir Bhattacharyya, Ghatu Subhash, Nagaraj Arakere, Bryan D. Allison, Bryan McCoy
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. April 2016, 138(2): 021003.
Paper No: MATS-15-1173
https://doi.org/10.1115/1.4032321
Published Online: January 21, 2016
View Article titled, Influence of Residual Stress and Temperature on the Cyclic Hardening Response of M50 High-Strength Bearing Steel Subjected to Rolling Contact Fatigue
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Topics: Stress, Temperature, Cycles, Steel, Hardening, Fatigue
Journal Articles

Cyclic Constitutive Response and Effective S–N Diagram of M50 NiL Case-Hardened Bearing Steel Subjected to Rolling Contact Fatigue

Abir Bhattacharyya, Anup Pandkar, Ghatu Subhash, Nagaraj Arakere
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. October 2015, 137(4): 041102.
Paper No: TRIB-14-1266
https://doi.org/10.1115/1.4030689
Published Online: October 1, 2015
View Article titled, Cyclic Constitutive Response and Effective S–N Diagram of M50 NiL Case-Hardened Bearing Steel Subjected to Rolling Contact Fatigue
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Topics: Cycles, Fatigue, Stress, Steel
Proceedings Papers

High Shear Rate Behavior of Gelatin

Jiwoon Kwon, Ghatu Subhash
Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 947-948, June 16–19, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SBC2010-19240
https://doi.org/10.1115/SBC2010-19240
View Paper titled, High Shear Rate Behavior of Gelatin
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Topics: Gelatin, Shear rate, Biological tissues, Soft tissues, Biocompatibility, Biomedicine, Damage, Deformation, Modeling
Proceedings Papers

Quasistatic and Dynamic Compressive Behavior of Gelatin

Jiwoon Kwon, Ghatu Subhash
Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 957-958, June 16–19, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SBC2010-19406
https://doi.org/10.1115/SBC2010-19406
View Paper titled, Quasistatic and Dynamic Compressive Behavior of Gelatin
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Topics: Gelatin, Biological tissues, Pressure, Damage, Deformation, Dynamic testing (Materials), Materials properties, Polymers, Signals
Proceedings Papers

Tensile and Compression Response of Agarose Gel at Various Strain Rates

Quinli Liu, Ghatu Subhash, David Moore
Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 959-960, June 16–19, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SBC2010-19470
https://doi.org/10.1115/SBC2010-19470
View Paper titled, Tensile and Compression Response of Agarose Gel at Various Strain Rates
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Topics: Agar, Compression, Biomedicine, Seas, Tension, Testing
Proceedings Papers

Shock Induced Deformation and Damage in Rat Brain Slices

Jiwoon Kwon, Sung J. Lee, Ghatu Subhash, Michael King, Malisa Sarntinoranont
Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 297-298, June 16–19, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SBC2010-19448
https://doi.org/10.1115/SBC2010-19448
View Paper titled, Shock Induced Deformation and Damage in Rat Brain Slices
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Topics: Brain, Damage, Deformation, Shock (Mechanics), Biological tissues, Polymers, Pressure, Soldiers, Stress, Traumatic brain injury
Journal Articles

Experimental and Numerical Modeling of Surface Indentation Response of Plastically Graded Materials

Michael A. Klecka, Ghatu Subhash, Nagaraj K. Arakere
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research-Article
J. Eng. Mater. Technol. October 2013, 135(4): 041004.
Paper No: MATS-12-1255
https://doi.org/10.1115/1.4024791
Published Online: July 10, 2013
View Article titled, Experimental and Numerical Modeling of Surface Indentation Response of Plastically Graded Materials
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Topics: Elastic moduli, Finite element analysis, Stress, Work hardening
Journal Articles

Determination of Subsurface Hardness Gradients in Plastically Graded Materials via Surface Indentation

Michael A. Klecka, Ghatu Subhash, Nagaraj K. Arakere
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031403.
https://doi.org/10.1115/1.4003859
Published Online: July 7, 2011
View Article titled, Determination of Subsurface Hardness Gradients in Plastically Graded Materials via Surface Indentation
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Topics: Bearings, Platinum group metals, Steel, Stress, Surface hardening, Heat treating (Metalworking), Plasticity, Wear, Fatigue damage, Machinery
Journal Articles

A Unified Phenomenological Model for Tensile and Compressive Response of Polymeric Foams

Timothy R. Walter, Andrew W. Richards, Ghatu Subhash
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. January 2009, 131(1): 011009.
https://doi.org/10.1115/1.3026556
Published Online: December 18, 2008
View Article titled, A Unified Phenomenological Model for Tensile and Compressive Response of Polymeric Foams
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Topics: Compression, Density, Elastic moduli, Plastic foam, Polymer foams, Stress, Tension, Collapse, Tensile strength
Proceedings Papers

Operational Wear and Friction in MEMS Devices

Ghatu Subhash, Alex D. Corwin, Maarten P. de Boer
Proc. ASME. IMECE2004, Microelectromechanical Systems, 207-209, November 13–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2004-60986
https://doi.org/10.1115/IMECE2004-60986
View Paper titled, Operational Wear and Friction in MEMS Devices
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Topics: Friction, Microelectromechanical systems, Polysilicon, Wear
Journal Articles

Optimization of Material Properties and Process Parameters for Tube Hydroforming of Aluminum Extrusions

Adam R. Loukus, Ghatu Subhash, Mehdi Imaninejad
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. April 2007, 129(2): 233–241.
https://doi.org/10.1115/1.2400259
Published Online: July 31, 2006
View Article titled, Optimization of Material Properties and Process Parameters for Tube Hydroforming of Aluminum Extrusions
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Topics: Ductility, Heat treating (Metalworking), Optimization, Stress, Hardening, Aluminum alloys, Materials properties, Pressure, Heat, Aluminum extrusions