Application of the Dang Van Fatigue Criterion to the Rail/Wheel Contact Problem

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Peixoto, DFC (Autor) Outra; Luis Andrade Ferreira (Autor) FEUP; Paulo Tavares de Castro (Autor) FEUP

Ata de Conferência Internacional

Título: ADVANCED MATERIALS FORUM V, PT 1 AND 2

Páginas: 1178-1185

5th International Materials Symposium/14th Conference of the Sociedade-Portuguesa-de-Materiais

Lisbon, PORTUGAL, APR 05-08, 2009

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

COMPENDEX

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-003-9XY

DOI: 10.4028/www.scientific.net/msf.636-637.1178

Abstract (EN): Great interest is dedicated to the wheel/rail contact problem, in particular as a result of some accidents worldwide and also in Portugal. In the present work a three dimensional finite element analysis of the wheel/rail contact problem was performed using the software ABAQUS. A preliminary study on simpler geometries was carried out, in order to identify the solution strategies giving more accurate solutions. The influence of mesh refinement, friction coefficient, and numerical techniques as Lagrange and penalty functions were analysed in the simpler cases of contact of two cylinders along a generatrix, and the contact of a cylinder and a rigid plane. The corresponding Hertz solutions were programmed using MATLAB in order to compare with the finite element analyses. The numerical procedures giving better results were later applied to the wheel/rail contact problem, using standard rail and wheels profiles used by the Portuguese Railways company (CP). The influence of small geometry variations on the stress analysis results was then studied, and the study of initiation of defects using the Dang Van fatigue criterion was performed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8