Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 134-153 of 1494
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Chalcogenide and metal-oxide memristive devices for advanced neuromorphic computing
(University of Waterloo, 2023-07-27)Energy-intensive artificial intelligence (AI) is prevailing and changing the world, which requires energy-efficient computing technology. However, traditional AI driven by von Neumann computing systems suffers from the ... -
Challenges Faced in Application of Fire and Life Safety Design in Current Canadian Building Code
(University of Waterloo, 2023-01-24)In the interest of public safety, building designs and construction in Canada are regulated by local legislation which is typically a provincial, or as appropriate municipal, building code based on the National Building ... -
Characterisation and modeling of precipitation kinetics and yield strength in variously treated 7000-series aluminum alloys
(University of Waterloo, 2021-10-01)This thesis investigates the effects of: (a) various aging practices, and (b) deformation during a warm-forming cycle, on the precipitation hardening response and aging kinetics of AA7050 and AA7075, respectively. The ... -
Characterization and microstructure-based modeling of spot weld failure in hot stamped steel
(University of Waterloo, 2022-02-08)The performance of automotive safety components in a crash event depends on the mechanical properties of the sheet metal as well as the failure behavior of the spot welds that are used for sheet metal assembly. Unlike many ... -
Characterization and Modeling of Forged ZK60 Mg Alloys under Quasi-static and Fatigue Loadings
(University of Waterloo, 2020-01-24)In response to impending changes to the environmental regulations on the vehicles’ gas consumption rate, the transportation sector is motivated toward the widespread adoption of lightweight materials in the manufacturing ... -
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 ... -
Characterization and Modeling of Smooth and Notched Rolled ZEK100-O under Cyclic Load
(University of Waterloo, 2018-10-26)As an effective way to reduce greenhouse gas emissions, goals on weight reduction has been fully focused by automotive manufacturers to meet the environmental regulations. Magnesium (Mg) alloys, with its high specific ... -
Characterization and Modelling of 3rd Generation Advanced High Strength Steel Automotive B-pillars from Forming to Crash
(University of Waterloo, 2022-09-26)This thesis investigates the application of 3rd Generation Advanced High-Strength Steels (3rd Gen AHSS) with ultimate tensile strengths of 980 and 1180 MPa to the forming and crash performance of an automotive B-pillar. ... -
Characterization and Modelling of Additively Manufactured Hastelloy X Parts under Quasi-Static and Cyclic Loading
(University of Waterloo, 2021-04-28)Laser powder-bed fusion (LPBF) is one of the main additive manufacturing (AM) methods, which has been proven to produce complex metallic parts with fine features. Understanding the correlation of process parameters to the ... -
Characterization and modelling of quasi-static and fatigue notch effect in AZ31B-H24 rolled sheet
(University of Waterloo, 2018-10-25)The transportation sector releases large amounts of harmful greenhouse gases into Earth’s atmosphere. Vehicle weight reduction through the use of magnesium alloys is an effective way to reduce carbon dioxide emission and ... -
Characterization and Simulation of the Microstructure of Additively Manufactured Hastelloy X Parts with Columnar Grain Structure
(University of Waterloo, 2021-05-21)One of the well-known AM techniques is laser powder-bed fusion (LPBF), which enables engineers to benefit from the concept of “design freedom” while designing complex geometries compared to other conventional methods. This ... -
Characterization and Simulation of Warm Forming of 6xxx and 7xxx Series Aluminum Alloys
(University of Waterloo, 2017-09-12)This thesis investigates warm forming of 6000 and 7000 series aluminum alloys, namely AA6013 T6, AA7075 T6 and a developmental 7000 series alloy (designated AA70XX T76), including characterization and validation of the ... -
Characterization and Size Optimization of Additively Manufactured Flexible Piezoresistive Sensors for Vibration Strain Sensing
(University of Waterloo, 2021-12-21)Flexible piezoresistive strain sensors have promising applications in areas such as wearables and soft robotics. For sensing dynamic strains, such as a runner’s gait or a slipping object held by a robotic gripper, these ... -
Characterization and Through Process Modelling of Large Strain Phenomena for Aluminum Alloys at Room and Elevated Temperatures
(University of Waterloo, 2017-02-16)The objective of this research is to model and analyze large strain problems (rolling, hot compression) in FCC polycrystals. In the first part of this research, a rate-dependent crystal plasticity based Element Free Galerkin ... -
Characterization of a Live Fire Training Simulator for use in the Canadian Fire Service
(University of Waterloo, 2020-06-17)This thesis reports on the design, instrumentation, testing, and characterization of a live fire training simulator for use in the Canadian Fire Service. The importance of fire training, including live fire training ... -
Characterization of anisotropic behaviour of ZK60 extrusion under stress-control condition and notes on fatigue modeling
(Elsevier, 2019-10)The anisotropic fatigue behavior of ZK60 is investigated through stress-control tests along two different material directions: extrusion (ED) and radial (RD) directions. The in-plane random texture along RD promotes ... -
Characterization of Formability and Friction during Hot Stamping of Al-Si Coated Press Hardened Steel
(University of Waterloo, 2023-05-23)This thesis investigates the friction and formability characteristics of Al-Si coated press hardened steels (PHS) during direct hot stamping. The PHS grades examined were PHS1800 and PHS1500, with nominal ultimate tensile ... -
The Characterization of Graphene Paper for Flexible Electronics Application
(University of Waterloo, 2016-09-29)Graphene has been gaining attention mainly because of its exceptional electrical and mechanical properties. Mono layer graphene with its planar hexagonal lattice structure is transparent and flexible. Together with its ... -
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. ... -
Characterization of magnesium spot welds under tensile and cyclic loadings
(Elsevier, 2011-12-01)Resistance spot welds of a magnesium alloy were characterized in terms of microstructure, hardness and monotonic and cyclic properties. Microstructural features in base metal and different zones in the weld region were ...