A multi-Hertzian contact model considering plasticity
| Autor: | Jean Bernard Ayasse, Luc Chevalier, Hugues Chollet, Michel Sebès |
|---|---|
| Přispěvatelé: | Génie des Réseaux de Transport Terrestres et Informatique Avancée (IFSTTAR/COSYS/GRETTIA), Communauté Université Paris-Est-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Laboratoire de Modélisation et Simulation Multi Echelle (MSME), Université Paris-Est Marne-la-Vallée (UPEM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Communauté Université Paris-Est, Centre National de la Recherche Scientifique (CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Paris-Est Marne-la-Vallée (UPEM) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry TRIBOLOGIE Process (computing) Rolling contact fatigue 02 engineering and technology Surfaces and Interfaces Structural engineering Plasticity [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology Condensed Matter Physics Execution time Surfaces Coatings and Films PLASTICITE 020303 mechanical engineering & transports Contact mechanics 0203 mechanical engineering Mechanics of Materials METHODE DES ELEMENTS FINIS Materials Chemistry CONTACT ROUE RAIL MECANIQUE DU CONTACT 0210 nano-technology business |
| Zdroj: | Wear Wear, Elsevier, 2014, 314 (1-2), pp. 118-124. ⟨10.1016/j.wear.2013.11.036⟩ |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/j.wear.2013.11.036⟩ |
| Popis: | Multi-body-system (MBS) simulation is widely used in the railway industry. One of its major topics is the assessment of rolling contact fatigue (RCF). This damaging process is linked to plasticity. MBS wheel–rail contact models usually neglect plasticity as it does not change the vehicle behaviour. With the proposed method, contact stresses are consistent with a perfect plastic law. This new method has been recently detailed: it is an extension of the STRIPES semi-Hertzian (SH) model. A multi-Hertzian (MH) variant is here described, which is less exact but faster than the SH method. This new method has been implemented in a MBS package without resulting in a much longer execution time than elastic models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect