Abstract
This paper presents a study of residual stress in cold drawn wires of low carbon steel by means of FEM simulation and X-ray diffraction. First, FEM simulations were performed to simulate the wire drawing process and calculate residual stresses. Due to the initial texture in the original material, a texture based anisotropic yield locus was incorporated into the model to take the plastic anisotropy into account. Next, X-ray diffraction measurements were carried out at the surface of the wire to obtain the distribution of the lattice spacing versus sin 2 ψ, from which the macroscopic residual stresses at the wire surface were calculated. The comparison between the results from the simulations and the measurements shows that a good agreement has been reached.
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