Finite element method simulation of large deformation processes as metal forming has to deal with the problem of high mesh distortion during the analysis. This distortion damages the quality of results or even makes the simulation impossible. The Arbitrary Lagrangian Eulerian (ALE) Formulation proposed in this work consists of relocating mesh nodes at each time step during the simulation. Mesh motion is performed by new nodal relocation methods, developed for eight-node hexahedral elements, that take into account geometric aspects and plastic strain results to avoid distortion. These relocation methods can move internal and boundary nodes improving and concentrating the mesh in critical zones. They are also applied for contact problems. The work presents the technique proposed and results of 3D problems that show the method efficiency.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Formulation to control mesh distortion in finite element simulation of 3D metal-forming problems


    Additional title:

    Sae Technical Papers



    Conference:

    SAE Brasil 2007 Congress and Exhibit ; 2007



    Publication date :

    2007-11-28




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    FORMULATION TO CONTROL MESH DISTORTION IN FINITE ELEMENT SIMULATION OF 3D METAL-FORMING PROBLEMS

    Aymone, J.L.F. / Teixeira, F.G. / Society of Automotive Engineers | British Library Conference Proceedings | 2007



    Automated mesh generation for finite element analysis of sheet metal forming

    Shimada,K. / Mori,N. / Kondo,T. et al. | Automotive engineering | 1999



    2D finite element simulation of sheet metal forming processes

    Wang,J. / Rvachov,M. / Huo,T. et al. | Automotive engineering | 1999