Abstract
T he accuracy of a Taylor-type constitutive model and computational procedures for polycrystalline materials in predicting the deformation response of initially pre-textured OFHC copper is evaluated. An approximate procedure for the characterization of the state of pre-textured fcc materials is developed. This procedure, when applied to a pre-textured OFHC copper, produced a characterization of the state of this material which is of reasonable accuracy for engineering purposes. Our mathematical models and procedures use this characterization of the initial state of the pre-textured copper to predict the macroscopic stress-strain behavior, crystallographic texture evolution and macroscopic shape change in subsequent nominally homogeneous and non-homogeneous experiments. The predictions from our mathematical procedures are found to be in good first-order accord with corresponding experimental measurements for this fcc material.
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