Journal Articles (Mechanical Engineering)
Items in this Collection
- 52Kumar, Amit
- 46Hogan, James D.
- 30Carey, Jason P.
- 17Major, Paul W.
- 15Hogan, James
- 13Melenka, Garrett W.
- 12Life Cycle Assessment
- 8Brittle failure
- 8Digital image correlation
- 8Dynamic fragmentation
- 7Boron carbide
- 7GHG Emissions
- 236Mechanical Engineering, Department of
- 236Mechanical Engineering, Department of/Journal Articles (Mechanical Engineering)
- 1Earth and Atmospheric Sciences, Department of
- 1Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 1Physics, Department of
- 1Physics, Department of/Journal Articles (Physics)
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Development of life cycle water footprints for oil sands-based transportation fuel production
Download2017-01-01
There is considerable focus on oil sands transportation fuel production. However, most studies focus on greenhouse gas emissions; there is limited work on understanding the life cycle water footprint. This study is an effort to address this gap. The main objective of this study is to develop...
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Development of Life Cycle Water-Demand Coefficients for Coal-Based Power Generation Technologies
Download2015-01-01
This paper aims to develop benchmark coefficients for water consumption and water withdrawals over the full life cycle of coal-based power generation. This study considered not only all of the unit operations involved in the full electricity generation life cycle but also compared different...
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Development of water demand coefficients for power generation from renewable energy technologies
Download2017-01-01
Renewable energy technology-based power generation is considered to be environmentally friendly and to have a low life cycle greenhouse gas emissions footprint. However, the life cycle water footprint of renewable energy technology-based power generation needs to be assessed. The objective of...
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Dynamic Behavior of an Ordinary Chondrite: the Effects of Microstructure on Strength, Failure and Fragmentation
Download2015
Plescia, Jeffrey, Ramesh, K.T., Hogan, James, Kimberley, Jamie, Hazeli, Kavan
Knowledge of the relationships between microstructure, stress-state and failure mechanisms is important in the development and validation of numerical models simulating large-scale impact events. In this study, we investigate the effects of microstructural constituent phases and defects on the...
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2015
Ramesh, K. , Plescia, J.B., Hogan, J.D., Mir, C.E.
Improvements in computational and analytical modelling of large-scale impact and catastrophic disruption events will come from a better understanding of the failure processes that are active during high strain-rate events. In this study we investigate the dynamic compressive failure and...
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2012
Hogan, James, Spray, John, Rogers, Robert, Boonsue, Suporn
The dynamic fragmentation of granite at impact energies of 6–28 J is examined in this paper. Results indicate that more dense materials, or those with a higher quartz content, produce less fractured mass, and have larger dominant fragment sizes and smaller aspect ratios in their fragment...
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Dynamic Fragmentation of Natural Ceramic Tiles: Ejecta Measurements and Kinetic Consequences
Download2013
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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Dynamic Fragmentation of Planetary Materials: Length Scale Quantification and Semi-Analytical Modelling
Download2013
Rogers, Robert, Spray, John, Hogan, James
The dynamic fragmentation of planetary materials during impact into finite targets has been examined. A particle tracking algorithm was implemented to estimate the size and velocity of fragments ejected from the rear of the target. A total of 76 experiments were performed for four material,...
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Dynamic Fragmentation of Planetary Materials: Sub-Hypervelocity Ejecta Measurements and Velocity Scaling during Impact Testing
Download2013-01-01
Hogan, James, Vincent, Gregory, Spray, John, Rogers, Robert, Schneider, Markus
Ejecta velocity measurements were made during impacts into solid planetary materials. Ejecta velocity fields overlie each other when normalized by vmax, v50%mass, and v50%KE; these correspond to the maximum velocity and median values of mass and kinetic energy among ejecta velocities....
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2021-03-01
Koch, Brendan M.L., Lo, Calvin, Li, Haoyang, Sano, Tomoko, Ligda, Jonathan, Hogan, James D.
This paper explores the compressive responses of alumina ceramics subjected to various levels of pre-damage via internal cracking. Pre-damage is achieved by subjecting the samples to thermal shock. Mechanical loading is performed using a load frame for quasi-static strain rates and a Kolsky bar...