Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 1-20 of 1068
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Binder Jetting and Heat Treatment of Ferrous Alloys
(University of Waterloo, 2019-08-15)Binder Jetting (BJ) is a manufacturing process that involves iterative and layer-wise deposition of powder material and an adhesive binder to construct geometrical features. It can be used to construct freeform and complex ... -
Application of a Rate Dependent Cohesive Zone Model to Predict Impact Response in Adhesively Bonded Ultra-High Strength Steel Tubes
(University of Waterloo, 2019-08-15)The design of multi-material lightweight vehicle (MMLV) structures incorporating structural adhesive joining requires advanced CAE supported by material characterization and computational model validation at the component ... -
One-dimensional titanium dioxide nanomaterial based memristive device and its neuromorphic computing applications
(University of Waterloo, 2019-08-13)Memristor devices as the alternative to the next-generation non-volatile memory devices has been widely studied recently due to its advantages of simple structure, fast switching speed, low power consumption. Among all the ... -
Simulations for the explosion and granular impact problems using the SPH method
(University of Waterloo, 2019-08-02)Simulations of explosions and granular impacts are challenging tasks to tackle using conventional mesh-based methods. In this thesis, a mesh-free technique called smoothed particle hydrodynamics (SPH) in conjunction with ... -
Nano-orifice based Dielectrophoretic Manipulation and Characterization of Nanoparticles and Biological Cells
(University of Waterloo, 2019-08-02)Dielectrophoresis (DEP) is the motion of a dielectric particle in an aqueous solution due to the polarization effects in a non-uniform electric field. Due to its property of label-free, scalable, and capable of generating ... -
Dynamic Model Identification and Trajectory Correction for Virtual Process Planning in Multi-Axis Machine Tools
(University of Waterloo, 2019-07-24)In today’s industry, the capability to effectively reduce production time and cost gives a manufacturer a vital advantage against its competitors. Specifically, in the machining industry, the ability to simulate the dynamic ... -
Characterization of laminar separation bubbles using infrared thermography
(University of Waterloo, 2019-07-11)An experimental investigation of laminar separation bubbles is presented, demonstrating the feasibility of employing infrared thermography for identification and quantitative characterization of a laminar separation bubble. ... -
Synergy in Additive Manufacturing and Machining of Complex Design Topologies
(University of Waterloo, 2019-06-25)Additive manufacturing (AM) enables freedom of design, part complexity and customization with minimal added cost, light weighting, design for function, and part consolidation. It is gaining increasing interests in the ... -
Investigation of Head and Brain Response in Football Helmet Impacts using a Finite Element Model of the Head and Neck with Active Muscle
(University of Waterloo, 2019-06-20)Among high school and college athletes, ∼50% of American football players report a concussion each year, and at least 30% of players sustain more than one concussion per year, which may be reduced in part through improvements ... -
An Information-Theoretic Exploration of Multi-Body Fluid-Structure Interactions
(University of Waterloo, 2019-06-19)Fluid-structure interactions are highly complex and difficult to resolve using classical physics tools. Recently, information theory has been proposed as an alternative for exploring these often highly non-linear and complex ... -
Pitch Angle Control for a Small-Scale Darrieus Vertical Axis Wind Turbine with Straight Blades (H-type VAWT)
(University of Waterloo, 2019-06-18)Unlike the horizontal axis wind turbines, only a few studies have been conducted recently to improve the performance of a Darrieus Vertical Axis Wind Turbine with straight blades (H-type VAWT). Pitch angle control technique ... -
Intelligent Robotic Recycling of Flat Panel Displays
(University of Waterloo, 2019-05-29)As the population and prosperity continue to rise the demand for high-tech products is rapidly increasing. Displays are a huge part of this market with millions being created each year. We have a finite amount of resources ... -
3D Ground Truth Generation Using Pre-Trained Deep Neural Networks
(University of Waterloo, 2019-05-24)Training 3D object detectors on publicly available data has been limited to small datasets due to the large amount of effort required to generate annotations. The difficulty of labeling in 3D using 2.5D sensors, such as ... -
COUPLED DYNAMICS OF CABLE-HARNESSED STRUCTURES: ANALYTICAL MODELING AND EXPERIMENTAL VALIDATION
(University of Waterloo, 2019-05-24)This thesis presents analytical models to study the vibration characteristics of cable-harnessed beam structures motivated by space structure applications. The distributed parameter models proposed in this work considers ... -
Fabrication and energetic characterization of micro and nano sized Al/CuO core-shell particles
(University of Waterloo, 2019-05-24)Thermite is one type of energetic material which could release a large amount of heat through an oxidation-reduction reaction. Thermite material has a lot of application in joining, metal refining and propulsion. Al/CuO ... -
Nondifferentiable energy minimization for cohesive fracture in a discontinuous Galerkin finite element framework
(University of Waterloo, 2019-05-23)Until recently, most works on the computational modelling of fracture relied on a Newtonian mechanics approach, i.e., momentum balance equations describing the motion of the body along with fracture criteria describing the ... -
Experimental Investigation and Multi-scale Modeling of Strain Localization, Shear Banding and Fracture in Precipitation Hardened Aluminum Alloys
(University of Waterloo, 2019-05-23)Finite element (FE) simulations are widely used in automotive design processes to model the forming and crashworthiness behavior of structural materials. Comprehensive material characterization and the availability of ... -
Atmospheric Dispersion of Radionuclides Following Small Modular Reactor Accidents
(University of Waterloo, 2019-05-23)Small modular reactors (SMRs), reactors having a power rating of 300 Megawatts (MW) or less, have been under development for several decades. As fewer larger reactors are built due to the high upfront capital investment, ... -
Interfacial bonding mechanism in Al/coated steel dissimilar refill friction stir spot welds
(Elsevier, 2019-06-01)Defect-free dissimilar Al/zinc coated steel and Al/AlSi coated steel welds were successfully fabricated by refill friction stir spot welding. However, Al alloy and uncoated steel could not be welded under the same weldin ... -
Three-dimensional micromechanical assessment of bio-inspired composites with non-uniformly dispersed inclusions
(Elsevier, 2019-03-15)Bio-inspired composites with hexagonal platelet and cylindrical inclusions were studied. A novel algorithm termed staggered hardcore algorithm (SHCA) was used to rapidly generate 3D periodic representative volume elements ...