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Springback in stringer sheet stretch forming

Groche, Peter and Bäcker, Frederic (2013):
Springback in stringer sheet stretch forming.
In: CIRP Annals - Manufacturing Technology, Elsevier, Manchester, pp. 275-278, 62, [Article]

Abstract

Stringer sheets are sheet metal structures stiffened by bifurcations in the cross-section. In order to create spatially curved light-weight structures they may serve as preforms for sheet metal hydroforming. The stiffness of sheets altered by stringers is expected to affect the hydroforming results. In particular influences of the geometric inhomogeneity on the extent and orientation of springback are of interest. They are investigated by means of mathematical analysis and forming experiments. A modal analysis of formed stringer sheets is conducted in order to understand the different impacts of stringers on the elastic behaviour of parts and springback after forming.

Item Type: Article
Erschienen: 2013
Creators: Groche, Peter and Bäcker, Frederic
Title: Springback in stringer sheet stretch forming
Language: English
Abstract:

Stringer sheets are sheet metal structures stiffened by bifurcations in the cross-section. In order to create spatially curved light-weight structures they may serve as preforms for sheet metal hydroforming. The stiffness of sheets altered by stringers is expected to affect the hydroforming results. In particular influences of the geometric inhomogeneity on the extent and orientation of springback are of interest. They are investigated by means of mathematical analysis and forming experiments. A modal analysis of formed stringer sheets is conducted in order to understand the different impacts of stringers on the elastic behaviour of parts and springback after forming.

Journal or Publication Title: CIRP Annals - Manufacturing Technology, Elsevier, Manchester
Volume: 62
Uncontrolled Keywords: Hydroforming, Sheet metal, Springback
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 12 Jun 2013 13:00
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