A physically based constitutive framework is proposed in this paper for precision metal forming processes. Texture evolution plays a key role for both fully plastic anisotropy and the trigger of deformation bifurcation, which is believed as a bridge to link Rice's localization analysis with the M-K analysis for FLD (Forming Limit Diagram). Comparing with the finite element discretization of 3-D crystal orientations, the proposed analytical approach to texture evolution via ODF (Orientation Distribution Function) can reduce computational time tremendously, in addition to enforcing both numerical stability and accuracy. The constitutive framework has potential for the computer-aided simulation of metal forming processes such as springback predicition, FLD calculation, and optimal die design by implementing the framework in a commercial finite element code. A 2-D analysis of localization and forming limit is presented to illustrate the proposed approach.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Physically based constitutive framework for precision metal forming processes


    Additional title:

    Physikalisch basierter Rahmen für präzise Metallformprozesse


    Contributors:
    Qian, Z. (author) / Liu, S. (author) / Wu, H.C. (author)

    Published in:

    International Journal of Vehicle Design ; 21 , 4/5 Special Issue ; 491-509


    Publication date :

    1999


    Size :

    19 Seiten, 11 Bilder, 51 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Physically based constitutive framework for precision metal forming processes

    Qian,Z. / Liu,S. / Wu,H.C. et al. | Automotive engineering | 1999


    Constitutive equations for sheet metal forming

    Heiduschke,K. / Anderheggen,E. / Reissner,J. | Automotive engineering | 1991


    A stress resultant constitutive law for sheet metal forming

    Chou,C.H. / Pan,J. / Tang,S.C. | Automotive engineering | 1991