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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 381-400 of 1512
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Static and Dynamic Affordance Learning in Vision-based Direct Perception for Autonomous Driving
(University of Waterloo, 2020-01-22)The recent development in autonomous driving involves high-level computer vision and detailed road scene understanding. Today, most autonomous vehicles are using the mediated perception approach for path planning ... -
Modeling the Residual Stress Distribution and Experimental Characterization of Shot Peening on AZ31B Rolled Sheet
(University of Waterloo, 2020-01-17)The drive to reduce fossil fuel consumption due to its environmental impacts has generated renewed interest in employing magnesium (Mg), the lightest industrial metal, and its alloys in vehicle manufacturing. One of the ... -
The Effect of De-icing Salts on the Chemistry of the Pore Solution in Cement Pastes and Their Influence on Rebar Corrosion
(University of Waterloo, 2020-01-15)Anti-icing and de-icing salts are an important tool used to increase traction and prevent the formation of black ice. Municipalities may choose to use any of a variety of salts including NaCl, CaCl2 and MgCl2. While all ... -
Test Methods for Characterization of Antibacterial Silver Organometallic Solutions on Textile Fabrics
(University of Waterloo, 2020-01-15)Antimicrobial agents have been incorporated into textile fabrics to inhibit the growth of undesirable odor-producing bacteria. In recent years, a variety of consumer textiles have been commercially released that utilize ... -
Numerical Analysis of Transpiration Cooling on a Turbulent Flat Plate
(University of Waterloo, 2020-01-14)Transpiration cooling is a promising thermal protection system for gas turbines, atmospheric re-entry heat shields, and rocket engine combustion chambers. Design of transpiration cooling systems must rely on numerical ... -
Development and characterization of a laminar aerosol flow tube
(AIP, 2006-03)We have developed a new laminar aerosol flow tube (AFT) to study transformations such as ice nucleation, deliquescence, and efflorescence in model atmospheric aerosols. The apparatus consists of four sections which can be ... -
Assessing strain fields in unbalanced unidirectional non-crimp fabrics
(Elsevier, 2020-03)Automation of fabric preforming for resin transfer moulded composite parts motivates the need to characterize the response of dry fabric, which is required for the development of simulation models to predict potential ... -
Prediction of ply crack evolution and stiffness degradation in multidirectional symmetric laminates under multiaxial stress states
(Elsevier, 2018-01-15)A comprehensive study was performed to assess the influence of microscopic ply crack interactions on crack surface opening (COD) and sliding displacements (CSD) for arbitrary plies in general symmetric multidirectional ... -
Predicting the axial crush response of CFRP tubes using three damage-based constitutive models
(Elsevier, 2018-08)Availability of newly developed rapid manufacturing processes may in the near future enable the integration of continuous fiber composites into vehicles while maintaining the volume production rates typical for the automotive ... -
Influence of drilling and abrasive water jet induced damage on the performance of carbon fabric/epoxy plates with holes
(Elsevier, 2017-03-01)The influence of conventional drilling (CD) and abrasive water jet (AWJ) cutting on the fatigue performance of carbon fabric/epoxy plates was investigated. Observations of machined hole regions revealed more severe damage ... -
Quasi-static and dynamic characterization of unidirectional non-crimp carbon fiber fabric composites processed by HP-RTM
(Elsevier, 2019-07)Recently developed high-pressure resin transfer molding (HP-RTM) processes have enabled the integration of lightweight fiber-reinforced composites into automobiles (e.g., frame and roof components, floor segments), which ... -
Time-dependent damage analysis for viscoelastic-viscoplastic structural laminates under biaxial loading
(Elsevier, 2018-11-01)Many composite structures are required to sustain severe thermo-mechanical loads over extended periods of time, during which viscoelastic and viscoplastic behavior can cause the progression of micro-damage. In this paper, ... -
Influence of alloying elements, testing solution and surface roughness on corrosion behaviour of stainless steel reinforcing bars
(University of Waterloo, 2020-01-10)The province of Ontario has moved from applying rock salt crystals, predominantly impure sodium chloride, to locally available anti-icing brine solutions with chloride amounts as high as 21%. At the same time, the specified ... -
Development of a Tailor-Welded Hot Stamped Side Frame Member
(University of Waterloo, 2020-01-10)This thesis investigates the application of hot stamped ultra-high strength steel (greater than 1000 MPa tensile strength) tailor-welded blanks in vehicle frontal crash energy management structures, as well as their potential ... -
Development of a Control System for an Urban Electric Vehicle Compatible with Autonomous Driving Features
(University of Waterloo, 2020-01-10)As cities continue to grow, the roads only become more congested, leading drivers to spend more time commuting, while vehicle accidents continue to rise. The Mechatronics Vehicle Systems Laboratory has developed its own ... -
The Role of Gold-Graphene Hybrid Nanostructure on Promoting Localized Surface Plasmonic Resonance Sensor Performance
(University of Waterloo, 2020-01-10)Localized surface plasmon resonance (LSPR) sensors have a wide range of applications, from medical diagnostics to environmental monitoring. In addition, the simplicity of the excitation method leads to simplicity in the ... -
Development and Evaluation of Ag-TiO2 Nano-photocatalysts for the removal of natural organic matter and pharmaceuticals
(University of Waterloo, 2020-01-08)Increasing the population and growing industries lead to contamination of surface and groundwater and threaten the sustainability of aquatic ecosystems and water resources. Some of the main contributors to water pollution ... -
Processability and tensile performance of continuous glass fiber/polyamide laminates for structural load-bearing applications
(Elsevier, 2018-02)The performance of continuous E-glass/polyamide 6 laminates processed using distinct hot press moulding cycles was assessed and compared with similar E-glass/epoxy and E-glass/polypropylene laminates. The effects of peak ... -
Extrudable hydroxyapatite/plant oil-based biopolymer nanocomposites for biomedical applications: Mechanical testing and modeling
(Elsevier, 2019-07-15)Towards developing bone-inspired, high performance composite biomaterials, two nanocomposite inks, consisting of a plant oil-based biopolymer resin (soybean oil epoxidized acrylate (SOEA)) and silanized nano-hydroxyapatite ... -
Modelling the micro-damage process zone during cortical bone fracture
(Elsevier, 2020-02-01)Cortical bone employs intrinsic toughening mechanisms to delay crack growth initiation and propagation hence increasing its fracture toughness. Computational models of the bone fracture process though do not explicitly ...