Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9707263 | International Journal of Plasticity | 2005 | 26 Pages |
Abstract
Conventional methodologies towards polycrystal plasticity use an aggregate of single crystals and this choice of the aggregate affects the response of the polycrystal. In order to address this issue, a continuum approach is presented for the representation of polycrystals through an orientation distribution function over the orientation space. Additionally, a constitutive framework for thermoelastic-viscoplastic response of metals based on polycrystal plasticity is presented along with a coupled macro-micro, fully implicit Lagrangian finite element algorithm. Numerical examples that highlight the accuracy, performance and benefits of the proposed approach are presented.
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Mechanical Engineering
Authors
Shankar Ganapathysubramanian, Nicholas Zabaras,