[article]
| Titre : |
Thermomechanical analysis of elastoplastic bodies in a sliding spherical contact and the effects of sliding speed, heat partition, and thermal softening |
| Type de document : |
texte imprimé |
| Auteurs : |
W. Wayne Chen, Auteur ; Q. Jane Wang, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
10 p. |
| Note générale : |
Tribology |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Friction Heat Temperature Stress Interior walls Pressure Elastic half space Heating flux Deformation |
| Résumé : |
A thermomechanical analysis of elasto-plastic bodies is a necessary step toward the understanding of tribological behaviors of machine components subjected to both mechanical loading and frictional heating. A three-dimensional thermoelastoplastic contact model for counterformal bodies has been developed, which takes into account steady state heat flux, temperature-dependent strain hardening behavior, and interaction of mechanical and thermal loads. The fast Fourier transform and conjugate gradient method are the underlying numerical algorithms used in this model. Sliding of a half-space over a stationary sphere is simulated with this model. The friction-induced heat is partitioned into two bodies based on surface temperature distributions. In the simulation, the sphere is considered to be fully thermoelastoplastic, while the half-space is treated to be thermoelastic. Simulation results include surface pressure, temperature rise, and subsurface stress and plastic strain fields. The paper also studies the influences of sliding speed and thermal softening on contact behaviors for sliding speed ranging three orders of magnitude. |
| En ligne : |
http://tribology.asmedigitalcollection.asme.org/article.aspx?articleID=1468101 |
in Transactions of the ASME . Journal of tribology > Vol. 130 N° 4 (Octobre 2008) . - 10 p.
[article] Thermomechanical analysis of elastoplastic bodies in a sliding spherical contact and the effects of sliding speed, heat partition, and thermal softening [texte imprimé] / W. Wayne Chen, Auteur ; Q. Jane Wang, Auteur . - 2015 . - 10 p. Tribology Langues : Anglais ( eng) in Transactions of the ASME . Journal of tribology > Vol. 130 N° 4 (Octobre 2008) . - 10 p.
| Mots-clés : |
Friction Heat Temperature Stress Interior walls Pressure Elastic half space Heating flux Deformation |
| Résumé : |
A thermomechanical analysis of elasto-plastic bodies is a necessary step toward the understanding of tribological behaviors of machine components subjected to both mechanical loading and frictional heating. A three-dimensional thermoelastoplastic contact model for counterformal bodies has been developed, which takes into account steady state heat flux, temperature-dependent strain hardening behavior, and interaction of mechanical and thermal loads. The fast Fourier transform and conjugate gradient method are the underlying numerical algorithms used in this model. Sliding of a half-space over a stationary sphere is simulated with this model. The friction-induced heat is partitioned into two bodies based on surface temperature distributions. In the simulation, the sphere is considered to be fully thermoelastoplastic, while the half-space is treated to be thermoelastic. Simulation results include surface pressure, temperature rise, and subsurface stress and plastic strain fields. The paper also studies the influences of sliding speed and thermal softening on contact behaviors for sliding speed ranging three orders of magnitude. |
| En ligne : |
http://tribology.asmedigitalcollection.asme.org/article.aspx?articleID=1468101 |
|
Thermomechanical analysis of elastoplastic bodies in a sliding spherical contact and the effects of sliding speed, heat partition, and thermal softening in Transactions of the ASME . Journal of tribology, Vol. 130 N° 4 (Octobre 2008)
