Efficient Finite Element and Contact Procedures for the Simulation of High Speed Sheet Metal Forming Processes

Brosius, A.; Kleiner, M.; Reese, S.; Schwarze, M.

Efficient Finite Element and Contact Procedures for the Simulation of High Speed Sheet Metal Forming Processes

dc.contributor.author	Brosius, A.	de
dc.contributor.author	Kleiner, M.	de
dc.contributor.author	Reese, S.	de
dc.contributor.author	Schwarze, M.	de
dc.date.accessioned	2010-04-08T12:52:56Z
dc.date.available	2010-04-08T12:52:56Z
dc.date.issued	2006	de
dc.description.abstract	A large variety of forming processes is used in industrial manufacturing processes. The numerical simulation of such processes puts high demands on the finite element technology. Usually first order isoparametric elements are preferred because of their robustness and numerical efficiency. Unfortunately, these elements tend to undesired numerical effects like "locking", predominant in situations characterized by plastic incompressibility or pure bending. To overcome this problem, several authors [1, 2, 4] propose finite element formulations based on the concept of reduced integration with hourglass stabilization by applying the "enhanced strain method". The main advantage of the proposed new isoparametric solid-shell formulation with linear ansatz functions is the fact that the undesirable effects of locking are eliminated. The previously described element technique can be applied to analyze specific problems of high speed forming into a cavity: Working with contact surfaces discretized by first order finite elements leads to discontinuities of the normal patch vector and, subsequently, to non-smooth sliding [5]. In quasi-static forming processes these discontinuities will not influence the contact forces noticeably. However, in dynamic investigations the sudden change of contact forces due to the rough surface description leads to a very high acceleration of the contact nodes. To avoid this effect, a smoothing algorithm will be described.	en
dc.identifier.uri	http://hdl.handle.net/2003/27070
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-12930
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	contact formulation	en
dc.subject	sheet metal forming	en
dc.subject	solid-shell formulation	en
dc.subject.ddc	620	de
dc.subject.ddc	670	de
dc.title	Efficient Finite Element and Contact Procedures for the Simulation of High Speed Sheet Metal Forming Processes	en
dc.type	Text	de
dc.type.publicationtype	conferenceObject	de
dcterms.accessRights	open access

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