|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Magnesium Technology 2016
||On Modeling the Mechanical Behavior and Texture Evolution of Rolled AZ31 Mg for Complex Loadings Involving Strain Path Changes
||Nitin Chandola, Crystal Pasiliao, Oana Cazacu, Benoit Revil-Baudard
|On-Site Speaker (Planned)
An accurate description of the deformation response of AZ31B Mg under changing strain paths requires consideration of its strong anisotropy and its evolution with accumulated plastic deformation. In this paper, the visco-plastic self-consistent mean field crystal plasticity model, VPSC, is used for modeling the room-temperature deformation of AZ31 Mg for a variety of loading paths. First, a procedure to calibrate the material parameters based on simple monotonic tensile and compressive mechanical test data on a rolled sheet material is outlined. Next, it is investigated whether with the same set of parameters it is possible to predict the response of a thinner AZ31B sheet. Specifically, it is shown that the model can predict with accuracy the macroscopic stress-strain response and texture evolution for loading involving stress path changes. The interplay between slip and twinning and its influence on work hardening are well described.
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