The purpose of this study is to clarify how the residual stress determined by the configuration of weight reduction holes affects the crack initiation in the brake discs for large motorcycles under the over loading condition. Two kinds of test samples of the one-piece type brake disc were used where the configuration of the weight reduction holes were different. The test result showed that the crack initiation life was significantly changed due to the configuration of weight reduction holes. The 3D FEM results of heat transfer and thermal stress analysis explained that the stress relaxation was dependent on the configuration of weight reduction holes of the disc because the initial thermal stress was directly determined by the simple stress distribution around each hole. This study confirmed that the configuration of weight reduction holes plays a decisive role in determining the design of the brake disc.


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    Titel :

    Effect of Initial Residual Stress on Crack Initiation from Tiny Holes of Brake Discs for Motorcycles


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Okubo, Kazuya (Autor:in) / Fujii, Toru (Autor:in) / Nakatsuji, Tsuyoshi (Autor:in) / Koyama, Yoshihiro (Autor:in)

    Kongress:

    25th Annual Brake Colloquium ; 2007



    Erscheinungsdatum :

    07.10.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Effect of Initial Residual Stress on Crack Initiation from Tiny Holes of Brake Discs for Motorcycles

    Koyama, Y. / Okubo, K. / Fujii, T. et al. | British Library Conference Proceedings | 2007


    Study on crack initiation at small holes of one-piece brake discs

    Nakatsuji,T. / Okubo,K. / Fujii,T. et al. | Kraftfahrwesen | 2002


    Study on Crack Initiation at Small Holes of One-piece Brake Discs

    Nakatsuji, T. / Okubo, K. / Fujii, T. et al. | British Library Conference Proceedings | 2002


    Study on Crack Initiation at Small Holes of One-piece Brake Discs

    Okubo, Kazuya / Sasada, Masahiro / Fujii, Toru et al. | SAE Technical Papers | 2002