Residual stress measurement in railroad car wheels
Abstract:A new failure criterion for discriminating good and bad (overheated) railroad car wheels is proposed. This criterion can replace the conventional "four inch" discoloration rule. The procedure for the new discrimination criterion is based on the fluctuations of the azimuthal residual stress in the tread of the wheel. This criterion is based on a maximum likelihood statistical analysis of data obtained from six different wheels as deterrnined by x-ray diffraction. Of these locations, the analysis showed the trea… Show more
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