Browsing Mechanical and Mechatronics Engineering by Supervisor "Butcher, Clifford"
Now showing items 1-10 of 10
-
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 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 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 ... -
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 ... -
Dynamic and Quasi-Static Response of Warm and Hot Formed Aluminum Beams Under Three-Point Bending
(University of Waterloo, 2018-01-23)This thesis investigates the effect of elevated temperature forming on the impact resistance of three aluminum alloys, AA6013-T6, AA7075-T6, and a developmental 7000-series alloy (designated AA7xxx-T76). Both die quenching ... -
Experimental Methods for the Constitutive Characterization of Sheet Materials in Generalized Plane Strain
(University of Waterloo, 2022-07-11)Decreasing vehicle weight by substituting traditional steel for high-strength steel or aluminum is an effective way to improve fuel economy and decrease greenhouse gas emissions in the transportation sector. The optimization ... -
Formability Characterization of Sheet Metals using the Angular Stretch Bend Test
(University of Waterloo, 2023-06-15)This thesis investigates the mechanics of the angular stretch bend test (ASBT) and analytical models using three different advanced high strength steels (AHSS) and finite element simulation. The three steels, 590R, 3rd Gen ... -
Investigation of Resistance Spot Weld Failure in Tailored Hot Stamped Assemblies
(University of Waterloo, 2018-01-23)This thesis presents the results from the mechanical characterization of resistance spot welds within hot stamped USIBOR® 1500-AS steel sheet (1.2 and 1.6 mm thickness) with tailored properties. Three parent metal conditions, ... -
On the Influence of the Through-Thickness Strain Gradients for Characterization of Formability and Fracture of Sheet Metal Alloys
(University of Waterloo, 2019-01-25)The main focus of this thesis is to investigate the effect of through-thickness strain gradient on sheet metal formability. Current technology for formability analysis has relied upon deformation modes of in-plane stretching ... -
Plastic Instability and Failure of Sheet Metals Subjected to Complex Stress States
(University of Waterloo, 2022-05-19)The rapid development of new emerging classes of steels has outpaced the methodologies and modelling strategies to exploit the superior mechanical properties in the design stage of structural automotive lightweight components. ...