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Proceedings Papers

Modeling Intersonic Crack Propagation in Fiber Reinforced Composites With Contact/Cohesive Laws

S. K. Dwivedi, H. D. Espinosa
Proc. ASME. IMECE2001, Damage Initiation and Prediction in Composites, Sandwich Structures and Thermal Barrier Coatings, 121-153, November 11–16, 2001
Paper No: IMECE2001/AD-25313
DOI: https://doi.org/10.1115/IMECE2001/AD-25313
View Paper titled, Modeling Intersonic Crack Propagation in Fiber Reinforced Composites With Contact/Cohesive Laws
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Topics: Crack propagation, Fiber reinforced composites, Modeling, Fracture (Materials), Composite materials, Failure, Carbon, Epoxy adhesives, Epoxy resins, Displacement
Journal Articles

Multiscale Experiments: State of the Art and Remaining Challenges

R. Agrawal, H. D. Espinosa
Journal: Journal of Engineering Materials and Technology
Article Type: Predictive Science And Technology In Mechanics And Materials
J. Eng. Mater. Technol. October 2009, 131(4): 041208.
DOI: https://doi.org/10.1115/1.3183782
Published Online: September 1, 2009
View Article titled, Multiscale Experiments: State of the Art and Remaining Challenges
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Topics: Atomic force microscopy, Carbon nanotubes, Dislocations, Displacement, Elasticity, Nanostructures , Nanowires, Plasticity, Stress, Thin films
Proceedings Papers

In-Situ Electron Microscopy Testing of 1-D Nanostructures

Horacio D. Espinosa
Proc. ASME. ESDA2008, Volume 1: Advanced Energy Systems; Advanced and Digital Manufacturing; Advanced Materials; Aerospace, 551-552, July 7–9, 2008
Paper No: ESDA2008-59147
DOI: https://doi.org/10.1115/ESDA2008-59147
View Paper titled, In-Situ Electron Microscopy Testing of 1-D Nanostructures
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Topics: Carbon nanotubes, Design, Electromechanical systems, Electron microscopy, Electrons, Experimental methods, Failure, Failure mechanisms, Imaging, Materials testing
Journal Articles

Special Issue on Advances in Impact Engineering

Ashkan Vaziri, Zhenyu Xue, Vikram S. Deshpande, Horacio D. Espinosa
Journal: Journal of Applied Mechanics
Article Type: Preface
J. Appl. Mech. September 2009, 76(5): 050601.
DOI: https://doi.org/10.1115/1.3129761
Published Online: June 15, 2009
View Article titled, Special Issue on Advances in Impact Engineering
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Topics: Computer simulation, Finite element analysis, Fracture (Materials), Fracture (Process), Shock (Mechanics), Stress
Proceedings Papers

Design of Radio Frequency (RF) MEMS Switches: Modeling

Yong Zhu, Horacio D. Espinosa
Proc. ASME. IMECE2003, Microelectromechanical Systems, 265-270, November 15–21, 2003
Paper No: IMECE2003-41945
DOI: https://doi.org/10.1115/IMECE2003-41945
View Paper titled, Design of Radio Frequency (RF) MEMS Switches: Modeling
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Topics: Design, Microelectromechanical systems, Modeling, Switches, Deflection, Finite element model, Electrostatic actuators, Geometry, Optimization, Reliability
Proceedings Papers

Fracture Size Effect in Ultrananocrystalline Diamond: Weibull Theory Applicability

B. Peng, H. D. Espinosa
Proc. ASME. IMECE2004, Applied Mechanics, 341-345, November 13–19, 2004
Paper No: IMECE2004-60070
DOI: https://doi.org/10.1115/IMECE2004-60070
View Paper titled, Fracture Size Effect in Ultrananocrystalline Diamond: Weibull Theory Applicability
Click here to open pdf in another window PDF for Fracture Size Effect in Ultrananocrystalline Diamond: Weibull Theory Applicability
Topics: Diamonds, Fracture (Materials), Fracture (Process), Size effect, Fracture toughness, Maximum likelihood estimation, Deflection, Failure mechanisms, Fractography, Mechanical properties
Proceedings Papers

A Feedback Controlled Carbon Nanotube Based NEMS Device: Concept and Modeling

Changhong Ke, Horacio D. Espinosa
Proc. ASME. IMECE2004, Electronic and Photonic Packaging, Electrical Systems Design and Photonics, and Nanotechnology, 539-542, November 13–19, 2004
Paper No: IMECE2004-60065
DOI: https://doi.org/10.1115/IMECE2004-60065
View Paper titled, A Feedback Controlled Carbon Nanotube Based NEMS Device: Concept and Modeling
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Topics: Carbon nanotubes, Feedback, Modeling, Nanoelectromechanical devices, Cantilevers, Circuits, Nanoelectromechanical systems, Resistors, Tunnel construction, Accounting
Journal Articles

Study of the Size Effects and Friction Conditions in Microextrusion—Part II: Size Effect in Dynamic Friction for Brass-Steel Pairs

Lapo F. Mori, Neil Krishnan, Jian Cao, Horacio D. Espinosa
Journal: Journal of Manufacturing Science and Engineering
Article Type: Technical Papers
J. Manuf. Sci. Eng. August 2007, 129(4): 677–689.
DOI: https://doi.org/10.1115/1.2738131
Published Online: March 20, 2007
View Article titled, Study of the Size Effects and Friction Conditions in Microextrusion—Part II: Size Effect in Dynamic Friction for Brass-Steel Pairs
Click here to open pdf in another window PDF for Study of the Size Effects and Friction Conditions in Microextrusion—Part II: Size Effect in Dynamic Friction for Brass-Steel Pairs
Topics: Brass (Metal), Friction, Grain size, Pressure, Steel, Sliding friction
Journal Articles

Numerical Analysis of Nanotube Based NEMS Devices — Part II: Role of Finite Kinematics, Stretching and Charge Concentrations

Changhong Ke, Horacio D. Espinosa, Nicola Pugno
Journal: Journal of Applied Mechanics
Article Type: Technical Papers
J. Appl. Mech. September 2005, 72(5): 726–731.
DOI: https://doi.org/10.1115/1.1985435
Published Online: September 1, 2005
View Article titled, Numerical Analysis of Nanotube Based NEMS Devices — Part II: Role of Finite Kinematics, Stretching and Charge Concentrations
Click here to open pdf in another window PDF for Numerical Analysis of Nanotube Based NEMS Devices — Part II: Role of Finite Kinematics, Stretching and Charge Concentrations
Topics: Kinematics, Nanoelectromechanical devices, Nanotube devices, Nanotubes, Numerical analysis
Journal Articles

Numerical Analysis of Nanotube-Based NEMS Devices—Part I: Electrostatic Charge Distribution on Multiwalled Nanotubes

Changhong Ke, Horacio D. Espinosa
Journal: Journal of Applied Mechanics
Article Type: Technical Papers
J. Appl. Mech. September 2005, 72(5): 721–725.
DOI: https://doi.org/10.1115/1.1985434
Published Online: September 1, 2005
View Article titled, Numerical Analysis of Nanotube-Based NEMS Devices—Part I: Electrostatic Charge Distribution on Multiwalled Nanotubes
Click here to open pdf in another window PDF for Numerical Analysis of Nanotube-Based NEMS Devices—Part I: Electrostatic Charge Distribution on Multiwalled Nanotubes
Topics: Boundary element methods, Multi-walled nanotubes, Nanoelectromechanical devices, Nanotubes, Nanowires, Numerical analysis, Cantilevers, Computer simulation, Cylinders, Design
Journal Articles

Analysis of Doubly Clamped Nanotube Devices in the Finite Deformation Regime

N. Pugno, C. H. Ke, H. D. Espinosa
Journal: Journal of Applied Mechanics
Article Type: Article
J. Appl. Mech. May 2005, 72(3): 445–449.
DOI: https://doi.org/10.1115/1.1875452
Published Online: September 23, 2004
View Article titled, Analysis of Doubly Clamped Nanotube Devices in the Finite Deformation Regime
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Topics: Deformation, Kinematics, Nanotube devices, Nanotubes
Journal Articles

Dynamic Friction Measurements at Sliding Velocities Representative of High-Speed Machining Processes

H. D. Espinosa, A. J. Patanella, M. Fischer
Journal: Journal of Tribology
Article Type: Technical Papers
J. Tribol. October 2000, 122(4): 834–848.
DOI: https://doi.org/10.1115/1.1310331
Published Online: April 17, 2000
View Article titled, Dynamic Friction Measurements at Sliding Velocities Representative of High-Speed Machining Processes
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Topics: Friction, Machining, Sliding friction, Stress, Surface roughness, Torque, Steel, Pressure
Journal Articles

A Variable Sensitivity Displacement Interferometer With Application to Wave Propagation Experiments

H. D. Espinosa, M. Mello, Y. Xu
Journal: Journal of Applied Mechanics
Article Type: Technical Papers
J. Appl. Mech. March 1997, 64(1): 123–131.
DOI: https://doi.org/10.1115/1.2787262
Published Online: March 1, 1997
View Article titled, A Variable Sensitivity Displacement Interferometer With Application to Wave Propagation Experiments
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Topics: Displacement, Interferometers, Wave propagation, Particulate matter, Diffraction gratings, Displacement measurement, Transfer functions
Journal Articles

Nonaxisymmetric Convection in Stationary Gas Tungsten Arc Weld Pools

Y. Joshi, P. Dutta, P. E. Schupp, D. Espinosa
Journal: Journal of Heat Transfer
Article Type: Research Papers
J. Heat Transfer. February 1997, 119(1): 164–172.
DOI: https://doi.org/10.1115/1.2824082
Published Online: February 1, 1997
View Article titled, Nonaxisymmetric Convection in Stationary Gas Tungsten Arc Weld Pools
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Topics: Convection, Tungsten, Aluminum, Steel, Clamps (Tools), Computer simulation, Flow (Dynamics), Gas tungsten arc welding, High temperature, Lasers