Record number :
Title of article :
Modeling the thermoelastic–viscoplastic response of polycrystals using a continuum representation over the orientation space
Author/Authors :
Shankar Ganapathysubramanian، نويسنده , , Nicholas Zabaras، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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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.
Keywords :
Thermo-mechanical processes , Lagrangian analysis , Crystal plasticity , Orientation distribution function , Finite elements
Journal title :
International Journal of Plasticity
Link To Document :