Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 632-651 of 1507
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Fabrication of Single-Walled Carbon Nanotube Electrodes for Ultracapacitors
(University of Waterloo, 2011-08-30)Well dispersed aqueous suspensions containing single-walled carbon nanotubes (SWCNTs) from bulk powders were prepared with surfactant and without surfactant by acid functionalization. SWCNT coated electrodes were then ... -
Fabrication of Surface Metal Matrix Composites Using Friction Stir Processing
(University of Waterloo, 2014-09-19)Friction stir processing has been employed to produce metal matrix composites by incorporating reinforcement particles in an Al 5059 matrix. Various particles with sizes from 130 nm to 4.3 um, and different process ... -
Fabrication of ZnO/Cu2O heterojunctions in atmospheric conditions: Improved interface quality and solar cell performance
(Elsevier, 2015-04-01)Zn1−xMgxO/Cu2O heterojunctions were successfully fabricated in open-air at low temperatures via atmospheric atomic layer deposition of Zn1−xMgxO on thermally oxidized cuprous oxide. Solar cells employing these heterojunctions ... -
Failure Analysis of Brazed Joints Using the CZM Approach
(University of Waterloo, 2011-09-16)Brazing, as a type of joining process, is widely used in manufacturing industries to join individual components of a structure. Structural reliability of a brazed assembly is strongly dependent on the joint mechanical ... -
Failure Analysis of Thick Wire Bonds
(University of Waterloo, 2013-04-24)In the last decade, reliability problems have become a critical subject in power modules. Understanding design weakness and failure mechanisms of thick wire bond are two critical steps in managing the risk of wire bond ... -
Failure Characterization of Hot Formed Boron Steels with Tailored Mechanical Properties
(University of Waterloo, 2016-04-01)This thesis presents the results from characterization of the failure behaviour of hot stamped USIBOR® 1500-AS steel sheet with tailored properties. A phenomenological approach is used in which failure strain is characterized ... -
Failure parameter identification and validation for a dual-phase 780 steel sheet
(Elsevier, 2017-10-01)A hybrid experimental-numerical procedure was implemented to determine the failure surface of a dual-phase 780 steel sheet as a function of the effective plastic strain, triaxiality, and Lode parameter using butterfly ... -
Fast and Robust Approach to Find the Gouge-free Tool Position of the Toroidal Cutter for the Bézier Surface in Five Axis Machining
(University of Waterloo, 2020-05-15)One of the approach used for tool path generation for Bézier surfaces is the Multipoint machining (MPM) approach, in which the toroidal cutter touches the machined surface at two points of contact. Multipoint machining ... -
Fatigue Analysis of Welded Joints Using Local Reference Stress
(University of Waterloo, 2017-05-24)Of the many parts of a machine, welded joints are the most susceptible to fatigue loading. The unusually complex geometry of a welded joint combined with the heating process during welding produces a high amount of stress ... -
Fatigue characteristics and modeling of cast and cast-forged ZK60 magnesium alloy
(Elsevier, 2019-01-01)The fatigue behavior of as-cast and cast-forged ZK60 magnesium alloy was investigated via fully-reversed strain controlled fatigue tests at different strain amplitudes. Microstructure analysis, texture measurement, and SEM ... -
Fatigue Characterization and Cyclic Plasticity Modeling of Magnesium Spot-Welds
(University of Waterloo, 2013-07-18)The automotive industry is adopting lightweight materials to improve emissions and fuel economy. Magnesium (Mg) alloys are the lightest of engineering metals, but work is required to assess their structural strength, ... -
Fatigue characterization and modeling of AZ31B magnesium alloy spot-welds
(Elsevier, 2014-07-01)Cyclic behavior of AZ31B spot-welds was studied using different specimen configurations, and compared with steel and aluminum spot-welds. Fatigue strength of magnesium spot-welds was similar to aluminum and less than steel. ... -
Fatigue Life Assessment of 30CrNiMo8HH Steel Under Variable Amplitude Loading
(University of Waterloo, 2013-01-18)The actual service loading histories of most engineering components are characterized by variable amplitudes and are sometimes rather complicated. The goal of this study was to estimate the fatigue life of nickel-chromiu ... -
Fatigue Life Prediction Based on the Advanced Fatigue Crack Growth Model and the Monte-Carlo Simulation Method
(University of Waterloo, 2015-01-05)It is well-known that loss of the structural stability due to propagation of the dominant crack is one of the main sources of fatigue failures. Therefore, computationally feasible fatigue crack growth model is essential ... -
Fatigue Life Prediction of an Automotive Chassis System with Combined Hardening Material Model
(Society of Automotive Engineers, 2016-04-05)The choice of an appropriate material model with parameters derived from testing and proper modeling of stress-strain response during cyclic loading are the critical steps for accurate fatigue-life prediction of complex ... -
Fatigue of Forged AZ80 Magnesium Alloy
(University of Waterloo, 2019-09-25)The majority of research surrounding the fatigue of Mg alloys generally exhibits a rigid dichotomy between theoretical and applied contributions. This research work addresses both of these domains of the field from a more ... -
A Fault Diagnosis System for Rotary Machinery Supported by Rolling Element Bearings
(University of Waterloo, 2007-09-22)The failure of rolling element bearings is one of the foremost causes of breakdown in rotary machinery. So far, a variety of vibration-based techniques have been developed to monitor the condition of bearings; however, the ... -
Feasibility Analysis of Two Indirect Heat Pump Assisted Solar Domestic Hot Water Systems
(University of Waterloo, 2011-01-21)This thesis is an analysis of the simulated performance of two indirect heat pump assisted solar domestic hot water (i-HPASDHW) systems compared to two base systems: an electric domestic hot water (DHW) system and a ... -
Feasibility of Producing Clad Twin Roll Cast (TRC) AZ31
(University of Waterloo, 2011-10-27)The need for lighter weight vehicles to improve fuel efficiency is becoming increasingly imperative. Sheet magnesium alloys offer the potential as a light weight material for use in the transportation industry due to their ... -
Feasibility Study of Ferromagnetic Particulate Path Diversion in Additive Manufacturing
(University of Waterloo, 2018-04-30)The use of electromagnetic actuator components typically involves a coil comprised of a stack-packed continuous winding, usually layered, and a core material of soft iron or at least a solenoid, similarly constructed, ...