2021
DOI: 10.1590/1980-5373-mr-2021-0316
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Jailson da Silva,
Pablo Almeida Santos,
Ricardo Kirchhof Unfer
et al.

Abstract: The exact calculations of the stress and strain distributions based on the controlling equations for a forming process with large deformation are often difficult. To circumvent such difficulties, some analytical methods such upper-bound analysis and slip-line field theory have been established by making a number of simplifying assumptions regarding the material properties and deformation modes. In this work an analytical model based on the upper-bound theory was successfully developed to predict material flow …

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