Abstract
A computationally efficient plasticity model for HCP crystals is developed for use in simulations where the constitutive model evaluations account for a significant fraction of the total analysis time. Combined pyramidal and prismatic slip is represented as an isotropic function while slip along the basal plane and extension twinning are maintained as distinct mechanisms. Additional efficiency is gained by deferring the updates of the rate-independent twinning and basal system strengths until the following time step, which allows precomputation of the inverses of the slip interaction matrices. Comparisons are made with single crystal pure Mg experimental data, as well as rolled polycrystal AZ31B data. The computational efficiency is evaluated by comparing simulation times from the current model with J2-Flow theory plasticity and a full crystal plasticity model. The reduced crystal plasticity model retains essential crystallographic features that govern macroscale mechanical response of HCP metals at approximately five times the computational expense of a J2-Flow theory calculation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
