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- 134Mechanical Engineering, Department of/Journal Articles (Mechanical Engineering)
- 74Mechanical Engineering, Department of/Progress in Canadian Mechanical Engineering, Volume 5
- 1Earth and Atmospheric Sciences, Department of
- 1Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 1Physics, Department of
- 31Carey, Jason P.
- 17Major, Paul W.
- 15Hogan, James
- 14Melenka, Garrett W.
- 12Nobes, David S.
- 10Secanell, Marc
- 8Dynamic fragmentation
- 6Planetary materials
- 5Brittle fracture
- 5Deformation
- 5Porous media plumes
- 4Brittle failure
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Combination of AC electrothermal and Dielectrophoresis realized by 3D Electrodes to Concentrate Particles
Download2022-06-01
Fathy, Jino, Wang, Ziying, Lai, Yongjun
In this paper, a particle microconcentrator is designed and simulated that works by combining the AC electrothermal (ACET) and Dielectrophoresis (DEP) forces. The microconcentrator consists of a PMMA channel with copper electrodes on the walls and bottom of the channel. On each side of the...
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2015
Stickle, Angela, Hogan, James, Kimberley, Jamie, Ramesh, K.T.
Modeling of catastrophic disruption requires understanding the processes of dynamic failure and fragmentation. This paper summarizes current mechanisms and models for dynamic failure, strength, and fragmentation, reviewing these from a mechanics perspective and with an emphasis on making links to...
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Gravity currents in a two-layer stratified ambient: the theory for the steady-state (front condition) and lock-released flows, and experimental confirmations.
Download2012
Tan, A.W. , Ungarish, M., Flynn, M.R.
We consider the propagation of a gravity current of density ρ c at the bottom of a two-layer stratified ambient in a horizontal channel of height H, in the high-Reynolds number Boussinesq domain. The study emphasizes theoretical-analytical modeling, however, experimental and Navier-Stokes...
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2022-06-01
ElKashat, Ahmed Khaled, Razmi, Amir Reza, Vafaeenezhad, Sajad, Hanifi, Amir Reza, Etsell, Thomas H., Shahbakhti, Mahdi
Solid oxide fuel cell (SOFC) is a promising clean technology to generate power with high efficiency at different scales. Decreasing the degradation rate of SOFCs is a challenge that can be tackled by lowering the operation temperature (<650°C). However, this can adversely affect cell performance...
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Dynamic Fragmentation of Natural Ceramic Tiles: Ejecta Measurements and Kinetic Consequences
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Vincent, Gregory, Rogers, Robert, Spray, John, Schneider, Markus, Hogan, James
Velocity and size measurements of ejecta derived from impacts of railgun-launched projectiles into 10 mm thick gabbro tiles are examined. Fragmentation of the target and the ejecta velocity field are found to be governed by Hertzian fracture and the transfer of kinetic energy to the target. Over...
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2015
Heo, Giseon, Major, Paul W., Melenka, Garrett W., Carey, Jason P., Romanyk, Dan R., Toogood, Roger W., Fathimani, Maryam
Background The primary objective of this study was to develop a computer-controlled three-dimensional friction measuring system, the orthodontic friction simulator (OFS). A clinically-based in vitro experiment considering wet and dry friction for conventionally and self-ligated brackets is...
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2002
Flynn, M.R., Onu, K., Sutherland, B. R.
Abstract. Synthetic schlieren is a new technique that allowsone easily and inexpensively to visualise density variations, such as those caused by internal waves propagating in a density stratified fluid. In the special case of twodimensional internal waves (for example, those created by an...
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2012
Boonsue, Suporn, Rogers, Robert, Spray, John, Hogan, James
The role of plastic deformation and fracture during small-scale, low-rate contact scenarios in gypsum is investigated. Results indicate that the hardness decreases with increasing load, on all axes, ranging from 216 kg/mm2 at 0.25 N to 91 kg/mm2 at 4.91 N on the (010) plane and from 122 kg/mm2 at...
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Design of micro- and macro-scale polymeric metamaterial solutions for passive and active thermal camouflaging applications
Download2023-04-01
Pisavadia, Harshil, Asad, Asad, Sameoto, Dan, Dolez, Patricia, Hogan, James D.
This work utilizes predictive modeling techniques to guide and inform metamaterial design for heat management solutions and thermal radiation control. Specifically, micro- and macro-scale polyethylene-based solutions are proposed for passive and active thermal camouflage. A micro-scale post...