Cold-rolled sheet steels with yield strengths from 50 to 180 ksi have been used for bumper reinforcement beams. As yield strength increases, thickness can be decreased. However, at reduced sheet thickness, the maximum load capacity of a given beam is influenced by local buckling. Ultra-high strength sheet steel beams were tested in bending to establish a data base from which an empirical relationship to predict the maximum load could be derived. A statistical relationship is shown to exist between sheet thickness, overall beam height, tensile strength, and the observed maximum load with an error of plus/minus 12 %. The equation to predict maximum load is valid for a number of loading arrangements. Using the relationship developed, beams of lesser height and greater thickness can be designed and still maintain similar maximum load capacity.


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    Title :

    Design of ultra-high strength sheet steel beams


    Additional title:

    Konstruktion von Trägern aus ultrahochfestem Stahl


    Contributors:

    Published in:

    SAE-Papers ; Mar ; 1-7


    Publication date :

    1990


    Size :

    7 Seiten, 9 Bilder, 5 Tabellen, 11 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design of ultra-high strength sheet steel beams

    Borchelt,J.E. / Subbaraman,B. / Inland Steel,US | Automotive engineering | 1990


    Design of Ultra-High Strength Sheet Steel Beams

    Subbaraman, Bala / Borchelt, James E. | SAE Technical Papers | 1990