Abstract
Plane strain extrusion of porous metals is analyzed using asymptotic techniques. The asymptotic expansions are based on a small parameter є defined to be the ratio of the height reduction to the length of the die in the reduction region. Gurson’s plasticity model is used to describe the constitutive behavior of the material. It is shown that the effects of porosity enter as an O(є) correction. The effects of strain hardening of the matrix and friction at the die-metal interface are accounted for. The asymptotic solutions developed are verified using detailed finite element calculations.
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© 1992 Springer-Verlag Berlin Heidelberg
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Govindarajan, R.M., Aravas, N. (1992). Asymptotic Analysis and Numerical Simulation of Deformation Processing of Porous Metals. In: Besdo, D., Stein, E. (eds) Finite Inelastic Deformations — Theory and Applications. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84833-9_6
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DOI: https://doi.org/10.1007/978-3-642-84833-9_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-84835-3
Online ISBN: 978-3-642-84833-9
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