Compliance with tighter emission regulations has increased the proportion of parasitic weight in commercial vehicles. In turn, the amount of payload must be reduced to comply with transportation weight requirements. A re-design of commercial vehicle components is necessary to decrease the vehicle weight and improve payload capacity. Side rails have traditionally been manufactured from high strength steels, but significant weight reductions can be achieved by substituting steel side rails with 6013 high strength aluminum alloy side rails. Material and stress analyses are presented in this paper in order to understand the effect of manufacturing process on the material's mechanical behavior. Metallographic and tensile test experiments for the 6013-T4 alloy were performed in preparation for residual stress measurements of a punching operation. Punched holes are critical to the function of the side rail and can lead to high stress levels and cracking. Residual stresses were measured for holes positioned in the web center and near the forming edge of the side rail using x-ray diffraction methods. Comparisons are made between 6013-T4 and 6013-T6 as well as roll-formed and nonroll-formed specimens. The results have been used to identify critical areas that may be susceptible to cracking and failure.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Residual Stress Analysis of Punched Holes in 6013 Aluminum Alloy Commercial Vehicle Side Rails


    Additional title:

    Sae Int. J. Commer. Veh


    Contributors:

    Conference:

    SAE 2010 Commercial Vehicle Engineering Congress ; 2010



    Publication date :

    2010-10-05


    Size :

    10 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Aluminum alloy 6013 sheet for new U.S. Navy aircraft

    Kaneko, R.S. / Bakow, L. / Lee, E.W. | Tema Archive | 1990




    Detecting Residual Stress in Rails

    British Library Online Contents | 1996


    Residual stress evaluation of railway rails

    Takahashi, Shunichi / Sasaki, Toshihiko / Kondoh, Yasuto et al. | Tema Archive | 2008