An upper-bound analysis of the tube extr
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R. Ebrahimi; M. Reihanian; M. Kanaani; M.M. Moshksar
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Article
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2008
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Elsevier Science
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English
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In this paper a new upper-bound approach is used to analyze the tube extrusion process. A kinematically admissible velocity field is developed to evaluate the internal power and the power dissipated on frictional and velocity discontinuity surfaces. The total power is optimized with respect to the