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Crystal stress distributions from synchrotron X-ray diffraction experiments and crystal-based finite element simulations conducted on copper specimens loaded through yielding and the elastic–plastic transition are presented. In the experiments, the lattice strain tensor, ϵ(R), and ultimately the stress tensor, σ(R), for every crystal orientation, R, within the aggregate were determined at discrete...
By diffraction of high-energy synchrotron X-rays, the variance of the axial lattice strains of individual grains is measured during tensile loading of a weakly textured copper polycrystal. Peak profiles are measured for {440} reflections arising from 20 bulk grains, all of which are at least one average grain diameter below the surfaces within a 0.2-mm thick specimen. The reflecting lattice planes...
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