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- 1Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
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- 8Brittle failure
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Micro-hardness and strain-rate-dependent compressive response of an ultra-light-weight Mg-Li-Al alloy
Download2022-01-15
Li, Haoyang, Shao, Chenwei, Rojas, David Funes, Ponga, Mauricio, Hogan, James D.
A study on the microstructure and composition, micro-hardness and strain-rate-dependent compressive behaviors, and the associated failure mechanisms of an ultra-light-weight Mg-Li-Al alloy were conducted. X-ray diffraction and X-ray photoelectron spectroscopy showed a multi-phase material with...
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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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Micro-Scale Energy Dissipation Mechanisms During Fracture in Natural Polyphase Ceramic Blocks
Download2011
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...
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Micromechanisms Associated with the Dynamic Compressive Failure of Hot-Pressed Boron Carbide
Download2015
Ramesh, K.T., Farbaniec, Lukasz, Hogan, James
Brittle failure in boron carbide has been studied in dynamic uniaxial compression using a Kolsky bar technique. A detailed study of fragments was performed using SEM-EDS, to identify the mechanisms responsible for failure. Microstructural characterization and fracture surface observations...
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2022-06-01
Elyasi, Majid, Khoram, Davood, Aghajani, Hamed, Mirnia, Mohamad Javad
Conference Abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
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Microstructural and mechanical characterization of variability in porous advanced ceramics using X-ray computed tomography and digital image correlation.
Download2019-01-01
Lo, Calvin, Sano, Tomoko, Hogan, James D.
This paper explores microstructural and mechanical variability in porous ceramics, combining advanced X-ray computed tomography (XCT) and digital image correlation (DIC) techniques to characterize an alumina material. The results show low variability in microstructure, with median pore size...
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Microstructure evolution and infrared thermography applied to tensile failure of a dilatant polymeric foam
Download2021-11-01
Bhagavathula, K.B., Parcon, J.S., Azar, A., Ouellet, S., Satapathy, S., Dennison, C.R., Hogan, James D.
In this work, the authors study the thermo-mechanical response of a dilatant polymeric foam in quasistatic tension and compression, focusing on the links between microstructure, mechanical response, and associated temperature rises in these materials. The authors study these links for a...
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Microwave Heating with Multifunctional Graphene Based Polylactide Acid Composites: Experimental and Numerical Study
Download2022-06-01
Conference Abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
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Model Predictive Control for Spacecraft Attitude Maneuver with Unknown Inertial Tensors by Reaction Wheels
Download2022-06-01
Conference Abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.