Mechanical fastened joints are widely used for joining structural parts. In estimating the reliability of a bolted joint in vehicle structures, the prediction of failure life is the most important failure mode to be considered. This paper represents a method for determining the fatigue life of bolted SAPH 45 steel structures used extensively in truck vehicle frames. First the fastening torque on bolted joints in the structure is determined by a vibration test. Under such torque, the fatigue life of the bolted joint can be estimated using the lethargy coefficient as the total defect estimation coefficient and the stress distribution factor. The lethargy coefficient is based upon previous applications of molecular dynamics in materials research field. In this paper, it is obtained from a simple tensile test and is measured by complete fracture time and ultimate stress.


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    Titel :

    Fatigue life prediction of bolted joints in vehicle structures by the lethargy coefficient


    Weitere Titelangaben:

    Vorhersage der Ermüdungslebensdauer von Schraubenverbindungen in Fahrzeugstrukturen


    Beteiligte:
    Yang, S.M. (Autor:in) / Kang, H.Y. (Autor:in) / Song, J.H. (Autor:in) / Kim, H.G. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2002


    Format / Umfang :

    10 Seiten, 8 Bilder, 7 Tabellen, 9 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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