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Shaarbaf H., Mashayekhi M., “Micromechanical Modeling of Multiphase Metals,Using a Crystal Plasticity Model”, Aerospace Mechanics Journal, Vol. 8 No. 1, pp. 13-27, 2012.


In this paper the plastic deformation of single phase and two-phase polycrystal materials is studied both experimentally and by a FEM model computation, taking into account crystal plasticity. A fully coupled constitutive elastic-plastic crystal plasticity model is developed and implemented in the finite element model to define the single crystal material. A polycrystal lattice as an aggregate of single crystal grains with various orientations is both simulated and analyzed by means of unit cell method. The user-subroutine has been written for single crystals materials. Many experimental tests of polycrystal materials have been performed to trust the results of simulations. The stress versus strain dependence as obtained from this FEM-model appears to be in good accordance with experimental results.


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Micromechanical Modeling of Multiphase Metals,Using a Crystal Plasticity Model


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