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Proceedings Papers

Prediction of Stiffness and Strength of Plain Weave Composites by Mixed Finite Element Method

Sangwook Sihn, Ajit K. Roy
Proc. ASME. IMECE2000, Aerospace, 9-14, November 5–10, 2000
Paper No: IMECE2000-2149
DOI: https://doi.org/10.1115/IMECE2000-2149
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Topics: Composite materials, Finite element methods, Stiffness, Computer simulation, Damage, Elastic moduli, Failure, Failure analysis, Stress, Stress analysis (Engineering)
Journal Articles

Improved Flow Rate in Electro-Osmotic Micropumps for Combinations of Substrates and Different Liquids With and Without Nanoparticles

Marwan F. Al-Rjoub, Ajit K. Roy, Sabyasachi Ganguli, Rupak K. Banerjee
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. June 2015, 137(2): 021001.
Paper No: EP-14-1059
DOI: https://doi.org/10.1115/1.4028746
Published Online: June 1, 2015
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Topics: Electroosmosis, Flow (Dynamics), Microchannels, Micropumps, Plasma desorption mass spectrometry
Proceedings Papers

Heat Transfer at Aluminum-Water Interfaces: Effect of Surface Roughness

H. Sam Huang, Jennifer L. Wohlwend, Vikas Varshney, Ajit K. Roy
Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 1695-1702, November 9–15, 2012
Paper No: IMECE2012-87584
DOI: https://doi.org/10.1115/IMECE2012-87584
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Topics: Aluminum, Finite element methods, Heat transfer, Molecular dynamics, Surface roughness, Water
Proceedings Papers

Enhanced Electro-Osmotic Flow Pump for Micro-Scale Heat Exchangers

Marwan F. Al-Rjoub, Ajit K. Roy, Sabyasachi Ganguli, Rupak K. Banerjee
Proc. ASME. MNHMT2012, ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer, 829-833, March 3–6, 2012
Paper No: MNHMT2012-75026
DOI: https://doi.org/10.1115/MNHMT2012-75026
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Topics: Electroosmosis, Heat exchangers, Microscale devices, Pumps, Silicon, Design, Manufacturing, Micropumps, Water, Microchannels
Journal Articles

Heat Transfer at Aluminum–Water Interfaces: Effect of Surface Roughness

H. Sam Huang, Vikas Varshney, Jennifer L. Wohlwend, Ajit K. Roy
Journal: Journal of Nanotechnology in Engineering and Medicine
Article Type: Research-Article
J. Nanotechnol. Eng. Med. August 2012, 3(3): 031008.
Paper No: NANO-12-1064
DOI: https://doi.org/10.1115/1.4007584
Published Online: January 18, 2013
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Topics: Aluminum, Heat transfer, Surface roughness, Water, Electrical conductance, Thermal conductivity, Mesoscopic systems
Proceedings Papers

Atomistic Scale Thermal Transport in Amorphous Materials and Its Interfaces

Ajit K. Roy, V. Varshney, S. Ganguli, S. Sihn, J. Lee, B. Farmer
Proc. ASME. AJTEC2011, ASME/JSME 2011 8th Thermal Engineering Joint Conference, T30065, March 13–17, 2011
Paper No: AJTEC2011-44656
DOI: https://doi.org/10.1115/AJTEC2011-44656
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Topics: Amorphous materials, Polymers, Heat, US Department of Defense, Adhesives, Aircraft, Carbon nanotubes, Composite materials, Design, Electronics
Journal Articles

Temperature and Load Ratio Effects on Crack-Growth Behavior of Austenitic Superalloys

Ajit K. Roy, Joydeep Pal, Muhammad H. Hasan
Journal: Journal of Engineering Materials and Technology
Article Type: Research Papers
J. Eng. Mater. Technol. January 2010, 132(1): 011001.
DOI: https://doi.org/10.1115/1.3184027
Published Online: November 2, 2009
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Topics: Alloys, Fracture (Materials), Stress, Superalloys, Temperature, Fatigue
Proceedings Papers

Cracking of Alloy C-276 in an Acidic Environment

Joydeep Pal, Chandan Mukhopadhyay, Ajit K. Roy
Proc. ASME. PVP2007, Volume 6: Materials and Fabrication, 385-389, July 22–26, 2007
Paper No: PVP2007-26429
DOI: https://doi.org/10.1115/PVP2007-26429
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Topics: Alloys, Fracture (Process), Stress
Proceedings Papers

Tensile Deformation of Alloy-22 at Ambient and Elevated Temperatures

Rama S. Koripelli, Ajit K. Roy
Proc. ASME. PVP2007, Volume 6: Materials and Fabrication, 391-394, July 22–26, 2007
Paper No: PVP2007-26464
DOI: https://doi.org/10.1115/PVP2007-26464
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Topics: Alloys, Temperature, Tensile deformation, Tensile strength
Proceedings Papers

The Evaluation of the Cracking Susceptibility of Alloy 718 in an Acidic Solution

Anand Venkatesh, Ajit K. Roy
Proc. ASME. PVP2007, Volume 6: Materials and Fabrication, 401-404, July 22–26, 2007
Paper No: PVP2007-26493
DOI: https://doi.org/10.1115/PVP2007-26493
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Topics: Alloys, Corrosion, Fracture (Process)
Proceedings Papers

Thermally Conductive Epoxy Nanocomposites

Sabyasachi Ganguli, Ajit K. Roy, David Anderson, Josh Wong
Proc. ASME. IMECE2007, Volume 11: Micro and Nano Systems, Parts A and B, 1143-1153, November 11–15, 2007
Paper No: IMECE2007-43347
DOI: https://doi.org/10.1115/IMECE2007-43347
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Topics: Epoxy adhesives, Epoxy resins, Nanocomposites, Thermal conductivity, Composite materials, Fillers (Materials), Graphite, Polymers, Aerospace industry, Fibers
Proceedings Papers

The Effect of Environmental and Mechanical Variables on Stress Corrosion Cracking of a Martensitic Stainless Steel for Transmutation Applications

Ramprashad Prabhakaran, Ajit K. Roy
Proc. ASME. ICONE12, 12th International Conference on Nuclear Engineering, Volume 1, 773-781, April 25–29, 2004
Paper No: ICONE12-49399
DOI: https://doi.org/10.1115/ICONE12-49399
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Topics: Corrosion, Stainless steel, Stress corrosion cracking
Proceedings Papers

Characterization of Residual Stresses in Structural Materials for Nuclear Applications

Ajit K. Roy, Subhra Bandyopadhyay, Silpa Budugur Suresh, Douglas Wells
Proc. ASME. PVP2005, Volume 5: High Pressure Technology, Nondestructive Evaluation, Pipeline Systems, Student Paper Competition, 113-118, July 17–21, 2005
Paper No: PVP2005-71490
DOI: https://doi.org/10.1115/PVP2005-71490
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Topics: Positron annihilation, Residual stresses, Transmission electron microscopy
Proceedings Papers

Mechanical Properties and Cracking Behavior of High-Temperature Heat-Exchanger Materials

Ajit K. Roy, Lalit Savalia, Narendra Kothapalli, Raghunandan Karamcheti
Proc. ASME. PVP2005, Volume 6: Materials and Fabrication, 709-715, July 17–21, 2005
Paper No: PVP2005-71781
DOI: https://doi.org/10.1115/PVP2005-71781
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Topics: Alloys, Cracking (Materials), Fracture (Process), Heat exchangers, High temperature, Mechanical properties, Stress corrosion cracking
Journal Articles

Effect of Carbonization Heating Rate, Microstructure, and Lay-Up on the Interlaminar Tensile Properties of a Two-Dimensional Carbon-Carbon Composite

Ajit K. Roy, David P. Anderson
Journal: Journal of Engineering Materials and Technology
Article Type: Technical Papers
J. Eng. Mater. Technol. April 1996, 118(2): 241–246.
DOI: https://doi.org/10.1115/1.2804895
Published Online: April 1, 1996
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Topics: Carbon, Composite materials, Heating, Tensile strength, Laminates, Warping, Lamination, Packing (Shipments), Packings (Cushioning), Porosity
Journal Articles

Three-Dimensional Effective Moduli of Orthotropic and Symmetric Laminates

Ajit K. Roy, Stephen W. Tsai
Journal: Journal of Applied Mechanics
Article Type: Research Papers
J. Appl. Mech. March 1992, 59(1): 39–47.
DOI: https://doi.org/10.1115/1.2899462
Published Online: March 1, 1992
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Topics: Laminates, Stiffness, Composite materials, Shear (Mechanics), Boundary-value problems, Deformation, Displacement, Stress