Incremental geometrically nonlinear axisymmetric finite element model of forming process of thick sheet metals under the action of rigid tools

Abstract

An incremental rigid-plastic axisymmetric finite element model for the analysis of thick sheet metal forming processes under the action of rigid tools is developed on the basis of a triangular element with the linear law of displacements' distribution. The nonlinear effects due to the changes in sheet geometry and contact states during each incremental step are taken into account. Examples on drawing of thick metal sheets through conical and cylindrical dies are considered.

Keywords

axisymmetric rigid-plastic finite element model / drawing of thick metal sheets

References

[1] Сухомлинов Л.Г., Петров В.К. Инкрементальная геометрически нелинейная безмоментная конечноэлементная модель пластического формоизменения листовых металлов под действием жестких инструментов // Известия МГТУ «МАМИ». №2(8). 2009. С. 241–247.

[2] Петров В.К., Михайлова В.Л, Сухомлинов Л.Г. // Известия МГТУ «МАМИ». №2(14). 2012, т.2. С. 150–158.

[3] Новожилов В.В. Основы нелинейной теории упругости. М.- Л.: Гостехиздат, 1948. 212 с.

[4] Малинин Н.Н. Прикладная теория пластичности и ползучести. М.: Машиностроение, 1975. 400 с.

[5] Nagtegaal J.C., Parks D.M., Rice J.R. On numerically accurate finite element solutions in the fully plastic range // Comput. Meth. Appl. Mech. Engng. 1974. V. 4, N.2. P.153-177.

[6] Sukhomlinov L.G., Engelsberg V.K., Davydov V.N. A finite element membrane model for the analysis of axisymmetric sheet metal forming processes // Int. J. Mech. Sci. 1992. V. 34. N 3. P. 179-193.

RIGHTS & PERMISSIONS

Sukhomlinov L.G., Mikhaylova V.L.