In this study, a procedure for characterizing advanced high strength steel sheets is presented in view of determining the material parameters for constitutive models that can be used for accurate prediction of springback and sidewall curl.The mechanical properties of DP980 and TRIP780 sheets were obtained experimentally, and their cyclic tension-compression behaviour was modeled with the Chaboche nonlinear kinematic hardening model and the Yoshida-Uemori two-surface plasticity model that are implemented in LS-DYNA. The unloading moduli were determined from monotonic tension tests at various prestrain levels. An inverse approach based on linear and quadratic response surfaces created by Sequential Strategy with Domain Reduction (SRSM) methodology using LS-OPT software was used and investigated to identify specific material parameters in each constitutive model.It was found that the quadratic meta-model with a quadratic approximation of history variables was able to accurately reproduce the cyclic stress-strain data when multiple tension-compression cycles are considered.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Characterization of Advanced High Strength Steel Sheets in View of the Numerical Prediction of Sidewall Curl


    Additional title:

    Sae Int. J. Mater. Manf
    Sae International Journal of Materials and Manufacturing


    Contributors:


    Publication date :

    2013-01-21


    Size :

    9 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Advanced high strength steel springback and sidewall curl control guideline

    Shih,H. / United States Steel,US | Automotive engineering | 2005



    2005-01-0499 Advanced High Strength Steel Springback and Sidewall Curl Control Guideline

    Shih, H.-C. / Society of Automotive Engineers | British Library Conference Proceedings | 2005


    Effects Of Design And Stamping Process Variables On Sidewall Curl

    Shi, M. / Bucklin, P. | British Library Conference Proceedings | 1995


    Characterization and Modeling of Anisotropic Fracture of Advanced High-Strength Steel Sheets

    Pavlina, Erik / Thomas, Grant / Pan, Hao et al. | SAE Technical Papers | 2023