Browsing Engineering (Faculty of) by Author "Worswick, Michael J."
Now showing items 1-8 of 8
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Constitutive characterization of a rare-earth magnesium alloy sheet (ZEK100-O) in shear loading: Studies of anisotropy and rate sensitivity
Abedini, Armin; Butcher, Clifford; Nemcko, Michael J.; Kurukuri, Srihari; Worswick, Michael J. (Elsevier, 2017-08-01)Rare-earth magnesium alloys such as ZEK100-O offer improved ductility over other conventional magnesium alloys at room temperature; however, they exhibit significant anisotropy and complex yield behaviour. In this work, a ... -
Damage Evolution in Complex-Phase and Dual-Phase Steels during Edge Stretching
PATHAK, NIKKY; Butcher, Clifford; Worswick, Michael J.; Bellhouse, Erika; Gao, Jeff (Multidisciplinary Digital Publishing Institute, 2017-03-27)The role of microstructural damage in controlling the edge stretchability of Complex-Phase (CP) and Dual-Phase (DP) steels was evaluated using hole tension experiments. The experiments considered a tensile specimen with a ... -
Evaluation and calibration of anisotropic yield criteria in shear Loading: Constraints to eliminate numerical artefacts
Abedini, Armin; Butcher, Clifford; Rahmaan, M. Taamjeed; Worswick, Michael J. (Elsevier, 2017-06-24)Many anisotropic phenomenological yield functions have been proposed in the literature in which their predictive capabilities strongly depend on the experimental calibration data as well as the calibration procedure to ... -
Experimental fracture characterisation of an anisotropic magnesium alloy sheet in proportional and non-proportional loading conditions
Abedini, Armin; Butcher, Clifford; Worswick, Michael J. (Elsevier, 2018-07)A comprehensive experimental investigation was performed to characterize the fracture behaviour of a rare-earth magnesium alloy sheet, ZEK100-O, under both proportional and non-proportional loading conditions. This material ... -
Failure parameter identification and validation for a dual-phase 780 steel sheet
Anderson, David; Butcher, Clifford; Pathak, Nikky; Worswick, Michael J. (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 ... -
Fracture Characterization of Rolled Sheet Alloys in Shear Loading: Studies of Specimen Geometry, Anisotropy, and Rate Sensitivity
Abedini, Armin; Butcher, Clifford; Worswick, Michael J. (Springer, 2017-01-01)Two different shear sample geometries were employed to investigate the failure behaviour of two automotive alloy rolled sheets; a highly anisotropic magnesium alloy (ZEK100) and a relatively isotropic dual phase steel ... -
Process parameters for hot stamping of AA7075 and D-7xxx to achieve high performance aged products
Omer, Kaab; Abolhasani, Atekeh; Kim, Samuel; Nikdejad, Tirdad; Butcher, Clifford; Wells, Mary; Esmaeili, Shahrzad; Worswick, Michael (Elsevier, 2018-07)This work examines the necessary process parameters for die quenching (DQ) during hot stamping and subsequent age hardening and paint bake cycle (PBC) response for two alloys: AA7075 and a developmental 7xxx alloy (referred ... -
Strain rate sensitivities of deformation mechanisms in magnesium alloys
Wang, Huamiao; Wu, Peidong; Kurukuri, Srihari; Worswick, Michael J.; Peng, Yinghong; Tang, Ding; Li, Dayong (Elsevier, 2018-08-01)Strain rate sensitivity (SRS) is an important material property that governs the rate dependent mechanical behaviors associated with deformation rate changes, creep, stress relaxation, formability, etc. The variety of ...