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2022-07-27

Amirian, Benhour, Jafarzadeh, Hossein, Abali, Bilen Emek, Reali, Alessandro, Hogan, James D.

Crack initiation and propagation as well as abrupt occurrence of twinning are challenging fracture problems where the transient phase-field approach is proven to be useful. Early-stage twinning growth and interactions are in focus herein for a magnesium single crystal at the nanometer...

2023-03-01

Shao, Chenwei, Li, Haoyang, Zhu, Yankun, Li, Peng, Yu, Haoyang, Zhang, Zhefeng, Gleiter, Herbert, McDonald, André, Hogan, James D.

Nanostructured materials are being actively developed, while it remains an open question how to rapidly scale them up to bulk engineering materials for broad industrial applications. This study propose an industrial approach to rapidly fabricate high-strength large-size nanostructured metal...

2022-12-01

Pisavadia, Harshil, Toussaint, Geneviève, Dolez, Patricia, Hogan, James D.

In this paper, a trilinear cohesive zone modeling approach available in the explicit nonlinear finite element software LS-DYNA is used to model the dynamic impact failure of an adhesive layer. This approach is an improvement over simpler cohesive zone models presented in the literature. The model...

2023-02-15

Amirian, Benhour, Abali, Bilen Emek, Hogan, James D.

Dynamic failure in advanced ceramic materials is a complex mechanical phenomenon, which is challenging to study in experimental and computational works. This work models and investigates the crack initiation, growth, propagation, and branching in two-dimensional single crystalline boron carbide...

2022-05-15

Parsazadeh, Mohammad, Fisher, Gary, McDonald, André, Hogan, James D.

Abrasive wear was simulated for tungsten carbide-nickel (WC–Ni) composite coatings with different volume fractions of reinforcing particles under abrasive cyclic loading. Using parallelized computing approaches, for the first time in the literature, the effects of reinforcing particle and normal...

2009-01-01

Sarkar, Susanjib, Kumar, Amit

Biohydrogen, Forest biomass, Gasification, Optimal plant size, Production cost, Techno-economic assessment Western Canada is the largest hydrocarbon base in Canada. Oil sands, one of its key crude oil resources, are used for production of bitumen, which is further processed to produce crude oil....

2015-01-01

Sperling, F. A. H., Polet, D. T., Flynn, M.R.

Microstructures on insect wings can promote directional drop shedding, and the local orientation of these structures is expected to facilitate drop removal. However, microstructures may exhibit very different orientations at different locations on the wing. Using the march fly Penthetria...

2016-01-01

Raj, Ratan, Suman, Ravi, Ghandehariun, Samane, Kumar, Amit, Tiwari, Manoj K.

The availability and low cost of natural gas in North America open the possibility of transporting it to places where there is significant demand. Natural gas can be transported long distances as liquefied natural gas (LNG). In this paper, data-intensive techno-economic models were developed to...

2011

Vincent, Gregory, Boonsue, Suporn, Rogers, Robert, Spray, John, Schneider, Markus, Hogan, James

The dynamic fracture of natural polyphase ceramic (granite) blocks by high-speed impact at 207 m/s, 420 m/s and 537 m/s has been investigated. An electromagnetic railgun was used as the launch system. Results reveal that the number of fragments increases substantially, and the dominant length...

2011

Nabih, Aliaa, Janssen, Meaghan, Kawchuk, Gregory N., Moussa, Walied, Carey, Jason P.

Back pain is a prevalent condition affecting much of the population at one time or the other. Complications, including neurological ones, can result from missed or mismanaged spinal abnormalities. These complications often result in serious patient injury and require more medical treatment....