Fully-coupled 3D Simulation of Electromagnetic Forming

Blum, H.; Stiemer, M.; Svendsen, B.; Unger, J.

Fully-coupled 3D Simulation of Electromagnetic Forming

dc.contributor.author	Blum, H.	de
dc.contributor.author	Stiemer, M.	de
dc.contributor.author	Svendsen, B.	de
dc.contributor.author	Unger, J.	de
dc.date.accessioned	2010-04-08T12:52:57Z
dc.date.available	2010-04-08T12:52:57Z
dc.date.issued	2006	de
dc.description.abstract	Electromagnetic metal forming is a contact-free high-speed forming process in which strain rates of more than 103 s^(-1) are achieved. The deformation of the workpiece is driven by a material body force, the Lorentz force, that results from the interaction of a pulsed magnetic field with eddy currents induced in the workpiece by the magnetic field itself. The purpose of this work is to present a fully-coupled 3D simulation of the process. For the mechanical structure a thermoelastic, viscoplastic, electromagnetic material model is relevant, which is incorporated in a large-deformation dynamic formulation. The evolution of the electromagnetic fields is governed by Maxwell s equations under quasistatic conditions. Their numerical solution in 3D requires particular arrangements due to a reduced regularity at material interfaces. Hence, Nédélec elements are employed. Coupling between the thermomechanical and electromagnetic subsystems takes the form of the Lorentz force, the electromotive intensity, and the current geometry of the workpiece. A staggered scheme based on a Lagrangian mesh for the workpiece and an ALE formulation for the electromagnetic field is utilized to solve the coupled system, guaranteeing the efficiency and accuracy of the data transfer between the two meshes.	en
dc.identifier.uri	http://hdl.handle.net/2003/27072
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-12932
dc.language.iso	en	de
dc.publisher	Institut für Umformtechnik - Technische Universität Dortmund	de
dc.relation.ispartof	2nd international conference on high speed forming, March 20th - 21st, 2006, Dortmund, Germany	de
dc.subject	electromagnetic metal forming	en
dc.subject	modeling,	en
dc.subject	viscoplasticity,	en
dc.subject.ddc	620	de
dc.subject.ddc	670	de
dc.title	Fully-coupled 3D Simulation of Electromagnetic Forming	en
dc.type	Text	de
dc.type.publicationtype	conferenceObject	de
dcterms.accessRights	open access

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