High-strength sheet steel structures manufactured with innovative forming technologies provide great potential for modern lightweight automotive bodies. Forming of the complex structures lead to specific thickness distribution in combination with strengthening effects. The designer requires reliable methods and data to fully exploit the potentials of the materials and technologies. Within this project the influence of uni- and biaxial forming on the static and fatigue strength under constant and variable amplitude loading was determined for the high-strength sheet steels DP 500 and ZStE 180 BH on material specimens with reference of the mild steel DC 04. The results are presented as the stress-strain curves and the e-N curves as a function of the forming grade. The structural behaviour in a complex structure was investigated on a newly developed generic component, a box beam with well-defined beads. Based on elastic plastic material simulations, experimental and numerical stress analysis and fatigue tests on the structures, a method for the fatigue life evaluation of complex formed automotive body structures based on material data from specimen testing and linear FEM-analysis (Finite Element Method) was proposed and demonstrated on the generic component. (VDEh)


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    Titel :

    Service improvement of high-strength formed sheet steel structures 'Bodylife'


    Weitere Titelangaben:

    Verbesserung des Betriebsverhaltens der hochfesten verformten Stahlblechkonstruktionen 'Bodylife'


    Beteiligte:
    Rupp, A. (Autor:in) / Wallmichrath, A. (Autor:in) / Reip, C.P. (Autor:in) / Riscifuli, S. (Autor:in) / Budano, S. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    186 Seiten, 152 Bilder, 56 Tabellen, 5 Quellen




    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




    Durability Evaluation of Formed Mild and High Strength Sheet Steel Structures

    Rupp, A.-N. / Wallmichrath, M. / Reip, C.-P. et al. | British Library Conference Proceedings | 2002


    Durability Evaluation of Formed Mild and High Strength Sheet Steel Structures

    Rupp, Andreas-Norbert / Reip, Carl-Peter / Wallmichrath, Marc | SAE Technical Papers | 2002


    Web Crippling of Cold-Formed Steel Beams using High Strength Sheet Steels

    Santaputra, C. / Parks, M. B. / Yu, W. W. | SAE Technical Papers | 1986


    Durability evaluation of formed mild and high strength steel structures

    Rupp,A.N. / Wallmichrath,M. / Reip,C.P. et al. | Kraftfahrwesen | 2002


    High Strength Formable Sheet Steel

    Bucher,J.H. / Hamburg,E.G. / Jones and Laughlin Steel,US | Kraftfahrwesen | 1977