Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 641-660 of 1512
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Effect of coating weight on fiber laser welding of Galvanneal-coated 22MnB5 press hardening steel
(Elsevier, 2018-03-15)Tensile strengths of up to 1.5 GPa and fracture elongation of 8% in press-hardening steel (PHS) opened up a great opportunity to improve the crash performance of vehicles. However, due to the increased susceptibility to ... -
An Experimental and Numerical Study on Tactile Neuroimaging: A Novel Minimally Invasive Technique for Intraoperative Brain Imaging
(Wiley, 2018-01-30)Background The success of tumor neurosurgery is highly dependent on the ability to accurately localize the operative target, which may be shifted during the operation. Performing an intraoperative brain imaging is crucial ... -
Time-Optimal Feedrate Planning for Freeform Toolpaths for Manufacturing Applications
(University of Waterloo, 2018-03-19)Optimality and computational efficiency are two desired yet competing attributes of time-optimal feedrate planning. A well-designed algorithm can vastly increase machining productivity, by reducing tool positioning time ... -
Damage Evolution in Complex-Phase and Dual-Phase Steels during Edge Stretching
(Multidisciplinary Digital Publishing Institute, 2017-03-27)The role of microstructural damage in controlling the edge stretchability of Complex-Phase (CP) and Dual-Phase (DP) steels was evaluated using hole tension experiments. The experiments considered a tensile specimen with a ... -
Characterization and Modeling of Sheared Edge Failure in Advanced High Strength Steel
(University of Waterloo, 2018-03-07)Edge failure is one of the major problems associated with forming of advanced high strength steels (AHSS) such as dual-phase (DP) steels. The development of ferritic-bainitic steels such as complex-phase (CP) steels have ... -
Modelling Axial Turbomachinery for Compressed Air Energy Storage
(University of Waterloo, 2018-03-07)Climate change and negative environmental effects from a human’s life style have ignited the search for grid-scale electricity production from renewable energy sources. Significant advances with respect to renewable energy ... -
Development of Solar-Optical Models for Energy Performance Analysis of Draperies in Complex Fenestration Systems
(University of Waterloo, 2018-02-21)Window coverings have been used for many years to provide protection from undesired environmental conditions and to regulate indoor conditions. Models for complex fenestration systems (CFS), a term coined in the early 90’s ... -
Optimal Material Selection for Transducers
(University of Waterloo, 2018-02-15)When selecting an active material for an application, it is tempting to rely upon prior knowledge or commercial products that fit the design criteria. While this method is time effective, it does not provide an optimal ... -
Fracture Characterization of Rolled Sheet Alloys in Shear Loading: Studies of Specimen Geometry, Anisotropy, and Rate Sensitivity
(Springer, 2017-01-01)Two different shear sample geometries were employed to investigate the failure behaviour of two automotive alloy rolled sheets; a highly anisotropic magnesium alloy (ZEK100) and a relatively isotropic dual phase steel ... -
Constitutive characterization of a rare-earth magnesium alloy sheet (ZEK100-O) in shear loading: Studies of anisotropy and rate sensitivity
(Elsevier, 2017-08-01)Rare-earth magnesium alloys such as ZEK100-O offer improved ductility over other conventional magnesium alloys at room temperature; however, they exhibit significant anisotropy and complex yield behaviour. In this work, a ... -
Constitutive and Fracture Characterization of an Anisotropic and Asymmetric Alloy Sheet
(University of Waterloo, 2018-02-14)Magnesium alloys can offer significant weight reduction over conventional steel or aluminum alloys. Specifically, rare-earth alloyed magnesium sheets have the potential to be used as light-weight structural alloys since ... -
A New Fire Protection Framework that Incorporates Fire Risk Indexing for Developing and Evaluating Alternative Solutions for Canadian Heritage Rehabilitation Projects
(University of Waterloo, 2018-02-01)Heritage buildings in Canada are a cultural resource that bear witness to Canada's defining moments and form a link to the past [1]. Several heritage buildings in Canada sit empty or underutilized and would benefit from ... -
Accumulative fold-forging (AFF) as a novel severe plastic deformation process to fabricate a high strength ultra-fine grained layered aluminum alloy structure
(Elsevier, 2018-02-01)A novel severe plastic deformation (SPD) process termed accumulative fold forging (AFF) is introduced to fabricate a homogenous ultra-fine grained (UFG) layered metal structure by repetitive folding and forging aluminum ... -
Effects of graphene nano-platelets (GNPs) on the microstructural characteristics and textural development of an Al-Mg alloy during friction-stir processing
(Elsevier, 2018-02-15)The aim of this research is to characterize the unique microstructural features of Al-matrix nanocomposites reinforced by graphene nano-platelets (GNPs), fabricated by multi-pass friction-stir processing (FSP). During this ... -
The Effects of Additives on the Dehydrogenation of Amorphous Manganese Borohydride and Its Crystalline Form after Solvent Filtration/Extraction
(Multidisciplinary Digital Publishing Institute, 2017-10-30)A non-stoichiometric, amorphous a-Mn(BH4)(2x) hydride, accompanied by a NaCl-type salt, was mechanochemically synthesized from the additive-free mixture of (2NaBH4 + MnCl2), as well as from the mixtures containing the ... -
Numerical modeling and experimental investigation of a prismatic battery subjected to water cooling
(Taylor and Francis, 2017-03-19)In this paper, a numerical model using ANSYS Fluent for a minichannel cold plate is developed for water-cooled LiFePO4 battery. The temperature and velocity distributions are investigated using experimental and computational ... -
The effects of filamentary Ni, graphene and lithium amide (LiNH2) additives on the dehydrogenation behavior of mechano-chemically synthesized crystalline manganese borohydride (Mn(BH4)2) and its solvent filtration/extraction
(Elsevier, 2018-04-01)Dehydrogenation properties of mechano-chemically synthesized crystalline Mn(BH4)2 hydride without and with ultrafine filamentary carbonyl nickel (Ni), graphene and LiNH2 were investigated. It is reported for the first time ... -
Elastography for Portable Ultrasound
(Springer Verlag, 2017-10-27)Portable wireless ultrasound has been emerging as a new ultrasound device due to its unique advantages including small size, lightweight, wireless connectivity and affordability. Modern portable ultrasound devices can offer ... -
Cooperative Least Square Parameter Identification by Consensus within the Network of Autonomous Vehicles
(SAE International, 2016-04-05)In this paper, a consensus framework for cooperative parameter estimation within the vehicular network is presented. It is assumed that each vehicle is equipped with a dedicated short range communication (DSRC) device and ... -
Crystal Plasticity based Formability Analysis of Transformation Induced Plasticity Steels
(University of Waterloo, 2018-01-23)This thesis outlines a framework to model to aid the development and utilization of transformation induced plasticity (TRIP) assisted multiphase steels in the automotive industry for light weighting applications. Automakers ...