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Numerical Simulation of Contact Stresses of Rail-Wheel Interface

Su'udi, Ahmad and Lubis, Asnawi (2011) Numerical Simulation of Contact Stresses of Rail-Wheel Interface. In: Seminar Nasional Tahunan Teknik Mesin (SNTTM) ke-10, 2 - 3 November 2011, Universitas Brawijaya, Malang.

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    Train accident is one of transportation accidents that frequently happen in Indonesia. From engineering point of view, the train accident category which concerned is derailment as a cause of failure function of rail or wheel. During its operation, rail-wheel system could be failure due to contact, known as rolling contact fatigue, and stick-slip behaviour between rail and wheel. Failures usually occurs as wear and initial crack that propagate through rail or wheel. This paper reports result of a nonlinear numerical simulation of contact stresses of rail-wheel interface. Investigation was carried out in the region where derailment happened and fracture modes was documented. Rail and wheel profile was measured before and after failure. Failure modes is then simulated numerically using finite element method, particularly contact stresses at rail-wheel interface. The results show that maximum combined (von Mises) stress occur at a distance of 4mm from the interface toward bottom of the rail and 5.5 mm from the interface toward the centre of the wheel. Whereas the maximum shear stress occurs exactly at the interface of the rail-wheel.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: contact stress, rail-wheel interface, finite element analysis
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Fakultas Teknik > S1 Teknik Mesin
    Depositing User: Fakultas Teknik Mesin
    Date Deposited: 30 May 2013 12:58
    Last Modified: 30 May 2013 12:58

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