This paper is concerned with the use of solid elements in sheet metal forming simulation, particularly springback prediction for flanging when the flanging radii are comparable with the metal thickness. It is demonstrated that appropriate solid elements must be used instead of shell elements in order to obtain adequate results. Numerical difficulties associated with development of suitable solid elements are discussed in detail, with emphasis on the volumetric locking and transverse shear locking phenomena respectively. The transverse shear locking arises from the incompatible deformation modes when the element is used for thin structure bending analysis. A four point bending testing problem is used to study the performances of different solid elements. A locking-free solid element based on assumed strain formulation is developed in Ford in-house program MTLFRM for accurate springback prediction, and a flanging example is given to demonstrate its application.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Locking Phenomena in the Use of Solid Elements for Sheet Metal Forming Simulation


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Tang, Sing C. (Autor:in) / Xia, Z. Cedric (Autor:in)

    Kongress:

    International Congress & Exposition ; 1999



    Erscheinungsdatum :

    01.03.1999




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Locking phenomena in the use of solid elements for sheet metal forming simulation

    Xia,Z.C. / Tang,S.C. / Ford Motor,US | Kraftfahrwesen | 1999


    Unstable phenomena in sheet metal forming process and their simulation

    Kroeplin,B. / Wilhelm,M. / Herrmann,M. | Kraftfahrwesen | 1991


    Sheet metal forming simulation using three and four node shell elements

    Boisse,P. / Daniel,J.L. / Gelin,J.C. | Kraftfahrwesen | 1991



    Process simulation in sheet metal forming

    Makinouchi, A. / Kawka, M. | Tema Archiv | 1994