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Proceedings Papers

An Investigation of Catalogued Product Development Information at a Major Consumer Products Company

Timothy J. Hoffman, Steven B. Shooter, Simon Szykman, Steven J. Fenves
Proc. ASME. IDETC-CIE2001, Volume 4: 13th International Conference on Design Theory and Methodology, 75-84, September 9–12, 2001
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/DTM-21690
https://doi.org/10.1115/DETC2001/DTM-21690
View Paper titled, An Investigation of Catalogued Product Development Information at a Major Consumer Products Company
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Topics: Design, Product development, Flow (Dynamics), Product design, Computer-aided engineering, Conceptual design, Knowledge management, Modeling, Storage
Proceedings Papers

Experimental Study of Energy Absorption of Fluid-Filled Honeycomb Structure

S. Jenson, M. Ali, K. Alam, J. Hoffman
Proc. ASME. IMECE2014, Volume 9: Mechanics of Solids, Structures and Fluids, V009T12A046, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-37580
https://doi.org/10.1115/IMECE2014-37580
View Paper titled, Experimental Study of Energy Absorption of Fluid-Filled Honeycomb Structure
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Topics: Absorption, Fluids, Honeycomb structures, Damage, Aluminum, Kinetic energy, Stress
Proceedings Papers

Allison 501-K17 SSGTGS Technical Directive Experience

Jeffrey S. Patterson, Donald J. Hoffman, Linda M. Ochs
Proc. ASME. GT1997, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T02A001, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-169
https://doi.org/10.1115/97-GT-169
View Paper titled, Allison 501-K17 SSGTGS Technical Directive Experience
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Topics: Electricity (Physics), Gas turbines, Generators, Maintainability, Missiles, Navy, Reliability, Seas, Ships, Systems engineering
Proceedings Papers

Study of Impact Properties of a Fluid-Filled Honeycomb Structure

J. Clark, S. Jenson, J. Schultz, J. Hoffman, S. Takak, M. Ali, Tessa Matthews
Proc. ASME. IMECE2013, Volume 9: Mechanics of Solids, Structures and Fluids, V009T10A044, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-62113
https://doi.org/10.1115/IMECE2013-62113
View Paper titled, Study of Impact Properties of a Fluid-Filled Honeycomb Structure
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Topics: Fluids, Honeycomb structures, Absorption, Non-Newtonian fluids, Regression analysis
Proceedings Papers

Impact Behavior of Graded Porous Hip Joint

M. Ali, J. Hoffman, P. Hayes, T. Matthews
Proc. ASME. SBC2013, Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments, V01AT09A021, June 26–29, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SBC2013-14583
https://doi.org/10.1115/SBC2013-14583
View Paper titled, Impact Behavior of Graded Porous Hip Joint
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Topics: Artificial limbs, Bearings, Failure, Health care, Hip joint prostheses, Knee, Weight (Mass)
Proceedings Papers

Ultrasonic Bonding of Membrane Electrode Assemblies for Low Temperature PEM Fuel Cells

Joseph R. Beck, Daniel F. Walczyk, Casey J. Hoffman, Steve J. Buelte
Proc. ASME. FUELCELL2012, ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology, 179-188, July 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2012-91308
https://doi.org/10.1115/FuelCell2012-91308
View Paper titled, Ultrasonic Bonding of Membrane Electrode Assemblies for Low Temperature PEM Fuel Cells
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Topics: Bonding, Low temperature, Membrane electrode assemblies, Proton exchange membrane fuel cells, Electrodes, Membranes, Manufacturing, Fuel cells, Pressing, Design
Proceedings Papers

The Effects of a Functionally Graded Cellular Structure on Impact Properties of a Hip Joint: A Finite Element Study

T. Kara, S. Takak, M. Ali, J. Hoffman
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 291-292, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53768
https://doi.org/10.1115/SBC2011-53768
View Paper titled, The Effects of a Functionally Graded Cellular Structure on Impact Properties of a Hip Joint: A Finite Element Study
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Topics: Arthroplasty, Ceramics, Finite element analysis, Hip joint prostheses, Kinematics, Metals, Wear
Proceedings Papers

Modeling of Impact Response of Composite Graded Structure

M. Ali, J. Hoffman, J. Clark, S. Takak
Proc. ASME. IMECE2011, Volume 8: Mechanics of Solids, Structures and Fluids; Vibration, Acoustics and Wave Propagation, 229-237, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-64361
https://doi.org/10.1115/IMECE2011-64361
View Paper titled, Modeling of Impact Response of Composite Graded Structure
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Topics: Composite materials, Modeling, Stress, Engineering simulation, Finite element analysis, Simulation, Deformation
Proceedings Papers

Direct Spraying of Catalyst Inks for PEMFC Electrode Manufacturing

Casey J. Hoffman, Daniel F. Walczyk
Proc. ASME. FUELCELL2011, ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology, 911-917, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2011-54416
https://doi.org/10.1115/FuelCell2011-54416
View Paper titled, Direct Spraying of Catalyst Inks for PEMFC Electrode Manufacturing
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Topics: Catalysts, Electrodes, Inks, Manufacturing, Plasma spraying, Proton exchange membrane fuel cells, Spraying (Coating processes), Fuel cells, Gas diffusion layers, Platinum
Proceedings Papers

Development of a PEM Fuel Cell Electrode Coating Testbed

Casey J. Hoffman, Daniel F. Walczyk
Proc. ASME. FUELCELL2010, ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 2, 537-543, June 14–16, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2010-33256
https://doi.org/10.1115/FuelCell2010-33256
View Paper titled, Development of a PEM Fuel Cell Electrode Coating Testbed
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Topics: Coating processes, Coatings, Electrodes, Proton exchange membrane fuel cells, Gas diffusion layers, Catalysts, Diffusion (Physics), Proton exchange membranes, Sprays, Testing
Proceedings Papers

A Dynamic Model of a Shipboard PEM Fuel Cell Reformer System With an Integrated Gas Turbine

Steven P. Miller, John M. Heinzel, John H. Kuseian, Donald J. Hoffman, Edward M. House, Anthony Nickens, Vasilis Tsourapas
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 77-84, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90739
https://doi.org/10.1115/GT2006-90739
View Paper titled, A Dynamic Model of a Shipboard PEM Fuel Cell Reformer System With an Integrated Gas Turbine
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Topics: Dynamic models, Gas turbines, Proton exchange membrane fuel cells, Hydrogen, Fuels, Proton exchange membranes, Transients (Dynamics), Compressed air, Diesel, Energy recovery
Journal Articles

Optimal Circumferential Placement of Cylindrical Thermocouple Probes for Reduction of Excitation Forces

E. C. Cobb, T.-C. Cheu, J. Hoffman
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 1993, 115(2): 418–423.
https://doi.org/10.1115/1.2906725
Published Online: April 1, 1993
View Articletitled, Optimal Circumferential Placement of Cylindrical Thermocouple Probes for Reduction of Excitation Forces
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Topics: Excitation, Probes, Thermocouples, Design, Design methodology, Flow (Dynamics), Fourier analysis, Linear programming, Optimization, Sensitivity analysis
Journal Articles

Multivariate Turbofan Engine Control for Full Flight Envelope Operation

J. A. Polley, S. Adibhatla, P. J. Hoffman
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 1989, 111(1): 130–137.
https://doi.org/10.1115/1.3240211
Published Online: January 1, 1989
View Articletitled, Multivariate Turbofan Engine Control for Full Flight Envelope Operation
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Topics: Engines, Flight, Turbofans, Control equipment, Design, Computer simulation, Cycles, Engineering design processes, Fuels, Gain scheduling
Journal Articles

A Monte Carlo Method of Solving Heat Conduction Problems

S. K. Fraley, T. J. Hoffman, P. N. Stevens
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 1980, 102(1): 121–125.
https://doi.org/10.1115/1.3244222
Published Online: February 1, 1980
View Articletitled, A Monte Carlo Method of Solving Heat Conduction Problems
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Topics: Heat conduction, Monte Carlo methods, Approximation, Multimedia, Temperature, Temperature distribution
Journal Articles

Viscoelastic Transition

E. J. Hoffman
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. May 1972, 94(2): 732–737.
https://doi.org/10.1115/1.3428237
Published Online: May 1, 1972
View Articletitled, Viscoelastic Transition
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Topics: Rheology, Shear (Mechanics), Temperature, Viscosity