Summary
A parametric study is carried out to investigate the influence of the elastic stiffness on the deformation history of a rectangular specimen under tension. Plane-strain condition is assumed, and two solutions differing by their elastic moduli are compared in the finite-strain range. The material behaviour is taken as elastic-viscoplastic and diffuse type necking deformations are triggered by an initial geometric defect. The resulting nonhomogeneous stress states are shown to be sensitive to the value of the elastic stiffness.
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Tuğcu, P. Effect of elastic stiffness on metal forming plasticity. Acta Mechanica 90, 43–51 (1991). https://doi.org/10.1007/BF01177398
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DOI: https://doi.org/10.1007/BF01177398