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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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Modelling Repair Techniques for Reinforced Concrete Bridge Barriers using Glass Fibre Reinforced Polymer Bars
DownloadSpring 2021
In an era where bridge deterioration due to corrosion has become evident and a pressing concern for future reinforced concrete bridge construction, glass fibre reinforced polymer (GFRP) reinforcement has emerged as a feasible alternative to steel due to its superior corrosion resistance. Research...
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Fall 2017
Premature corrosion of reinforcing steel is a cause of concern for steel-reinforced concrete structures, since it causes them to deteriorate before their design operational life is attained. The Use of fiber-reinforced polymer (FRP) bars in reinforced-concrete (RC) structures has been shown to...
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On the Rate-dependency of Mechanical Properties and Failure Mechanisms of a (γ + α2) - TiAl/Ti3Al-Al2O3 Cermet
Download2020-07-01
Li, Haoyang, Motamedi, Pouyan, Hogan, James D.
This study investigated the rate-dependent mechanical properties and failure of a self-propagating high-temperature synthesized TiAl/Ti3Al-Al2O3 cermet using mechanical testing and advanced microscopy. Quasi-static and dynamic uniaxial compression tests coupled with high-speed imaging and digital...
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2012-06-01
Bindiganavile, V.S., Lubell, A.S., Shoaib, A.
Hooked end steel fibers were included between 0~1% by volume to provide enhanced shear resistance to three different types of steel fiber reinforced concrete (SFRC) namely, a regular concrete mix, a lightweight aggregate mix and a high strength mix. The test results at the material scale showed a...
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2013-05-30
Hong, Luong T., Lubell, Adam S.
Magnesium potassium phosphate ceramics are from the family of phosphate-based cements which can be used as alternatives to Portland cements. In this study, concretes and wood composites were produced using magnesium potassium phosphate ceramic binders and supplementary materials including fly...
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Shear Behaviour of Concrete Slabs and Beams Reinforced with High-Performance ASTM A1035 Steel
Download2013-09-30
Lubell, Adam S., Desalegne, Admasu S.
High-performance steel bars manufactured to conform to ASTM A1035-11 have different metallurgy and microstructure than conventional reinforcing steel. These changes result in an effective yield strength significantly higher than conventional ASTM A615 steel while also being less susceptible to...
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Structural Behaviour of Textile and Steel Reinforced Ceramic Composite Slabs
2014-09-30
Lubell, Adam S., Tassew, Samson T.
Magnesium potassium phosphate cement (MPPC) is an innovative chemically bonded cement formed by the reaction of magnesium oxide and monopotassium phosphate. Concrete produced using a MPPC binder can exhibit faster strength gain and results in lower overall environmental impacts from greenhouse...
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Structural Reliability of Non-Slender Loadbearing Concrete Masonry Members under Concentric and Eccentric Loads
DownloadFall 2017
Moosavi Nanehkaran, Seyed Abdol Hadi
Although the reliability levels of structural steel and reinforced concrete structures designed to the Canadian codes and standards have been investigated substantially in the past four decades, studies on the reliability of masonry structures are limited. Based on some preliminary studies in...
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The effects of defects on the uniaxial compressive strength and failure of an advanced ceramic
Download2016
Ramesh, K., Farbaniec, Lukasz, Hogan, James D., Sano, Tomoko, Shaeffer, Matthew
This study investigates the effects of the processing-induced defect population on the dynamic compressive strength and failure of a hot-pressed boron carbide. Quantitative microscopic analysis was used to determine the distributions of three types of processing-induced inhomogeneities: aluminum...