Intergranular Residual Stresses in Plastically Deformed Polycrystals
The aim of this study is to evaluate the second order internal stresses and the associated stored energy in a plastically transformed polycrystal. Mechanics of storing of energy at intra- and intergranular levels are discussed. Next, the self-consistent scheme is presented and a model based on this approximation is developed. This model enables to take into account the crystallographic texture and its evolution, the morphology of grains, the internal stresses evolution and the anisotropy of the intracrystalline hardening. The model is applied to predict the behavior of a FCC metals. The obtained results are in a good agreement with experimental observations.
KeywordsResidual Stress Plastic Strain Internal Stress Crystallographic Texture Residual Stress Tensor
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