Summary
Constitutive relations and finite element formulations for elastic-plastic and rigid-plastic materials in sheet metal forming analysis are reviewed. In the present study an elastic-plastic material model and a Total Lagrangian finite element formulation is used. Arbitrarily shaped punches and dies can be treated. The interface contact forces between the tools and the metal sheet are assumed to be either of Coulomb friction type or simply a constant shear stress. The effects of various material parameters and friction in the strain distribution in hemispherical punch stretching have been investigated numerically and are shown in diagrams. A few experimentally determined strain distributions are shown and are compared with results from finite element calculations.
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© 1986 Springer-Verlag, Berlin, Heidelberg
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Mattiasson, K., Melander, A. (1986). Numerical Simulation of Stretch Forming Processes. In: Lange, K. (eds) Simulation of Metal Forming Processes by the Finite Element Method (SIMOP-I). Berichte aus dem Institut für Umformtechnik der Universität Stuttgart, vol 85. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82810-2_8
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DOI: https://doi.org/10.1007/978-3-642-82810-2_8
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