On some recent trends in modelling of contact fatigue and wear in rail

• Published in: Wear Vol. 253; no. 1; pp. 219 - 227
• Main Authors: Van, K.Dang, Maitournam, M.H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 01.07.2002; Amsterdam Elsevier Science; New York, NY Elsevier
• Subjects: Applied sciences; Engineering Sciences; Exact sciences and technology; Finite element analysis; Fracture mechanics (crack, fatigue, damage...); Fracture mechanics, fatigue and cracks; Friction, wear, lubrication; Fundamental areas of phenomenology (including applications); Inelasticity (thermoplasticity, viscoplasticity...); Machine components; Mechanical engineering. Machine design; Mechanics; Moving loads; Multi-axial fatigue; Physics; Shakedown; Solid mechanics; Structural and continuum mechanics; Viscoelasticity, plasticity, viscoplasticity; Shakedown; Finite element analysis; Moving loads; Multi-axial fatigue; Roll contact fatigue; Ratchetting; High cycle fatigue; Rail vehicle; Numerical method; Fourier series; Multiaxial load; Modeling; Low cycle fatigue; Stationary condition; Finite element method; Inelasticity; Three dimensional model; Rail; Moving load; Wear; Damaging; Tribology
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/S0043-1648(02)00104-7

Specific numerical methods for the computational analysis of damage induced in rail by repeated rolling are presented. The calculations of mechanical stabilized states (shakedown, ratchetting) of rail-like structures subjected to moving contact loads are performed using the “stationary methods”. An association of 2-D finite element method, Fourier expansion in the longitudinal direction of the rail and steady-state assumption reduces the computational cost of such procedures. These methods constitute the key for the quantitative prediction of fatigue. Three types of damage (low-, high-cycle fatigue and damage) are encountered. Special attention to high-cycle fatigue is paid, through the use of Dang Van multi-axial fatigue criterion. The 3-D simulations of rolling contact and investigation of rail high-cycle fatigue illustrate the applicability of the methodology.