Abstract
A railroad wheel, heated by tread braking and in rolling contact with a rail, is subjected to complex stresses with every revolution. In addition to the stresses caused by the contact load, the transfer of heat across the contact patch from the hot wheel to the ambient temperature rail induces transient thermal stresses in the wheel tread. To investigate the significance of these thermal stresses, termed the rail chill effect, a finite element model of frictionless rolling contact was developed. The wheel tread was modeled as a plane strain portion of an elasto-plastic half space. Thermal and mechanical loads were translated across the model's free surface while displacement boundary conditions due to an elastic Hertzian contact analysis were imposed at the material boundaries of the mesh. Using temperature dependent material properties, we obtain results on the penetration of the temperature affected zone and stresses in the wheel.
| Original language | English (US) |
|---|---|
| Title of host publication | Rail Transportation - 1992 |
| Publisher | Publ by ASME |
| Pages | 117-122 |
| Number of pages | 6 |
| Volume | 5 |
| ISBN (Print) | 0791811239 |
| State | Published - 1992 |
| Event | Winter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA Duration: Nov 8 1992 → Nov 13 1992 |
Other
| Other | Winter Annual Meeting of the American Society of Mechanical Engineers |
|---|---|
| City | Anaheim, CA, USA |
| Period | 11/8/92 → 11/13/92 |
ASJC Scopus subject areas
- Mechanical Engineering
- Transportation