Suudi, Ahmad and Lubis, Asnawi (2011) Numerical simulation of contact stresses of rail-wheel interface. Proceeding Seminar Nasional Tahunan Teknik Mesin (SNTTM) ke-10, 10. pp. 673-677. ISSN 978-602-19028-0-6

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Abstract

Train accident is one of transportation accidents that frequently happen in Indonesia. From engineering point ofview, the train accident category which concerned is derailment as a cause offailure function of rail or wheel. During its operation, rail-wheel system could befailure due to contact, blown as rolling contactfatigue, 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 usingfinite element method, contact stresses at rail-wheel interface. The results show that maximum combined (von Mises) stress occur at a distance of4 mm 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 ofthe rail-wheel. Keywords: numerical simulations, contact stresses, finite element method rail-wheel interface

Item Type: Article
Subjects: T Technology > TF Railroad engineering and operation
T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik (FT) > Prodi Teknik Mesin
Depositing User: Ahmad Suudi
Date Deposited: 26 Oct 2018 10:10
Last Modified: 26 Oct 2018 10:10
URI: http://repository.lppm.unila.ac.id/id/eprint/8870

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