Abstract
This analysis investigates the thermal effects on crack growth in rolling contact fatigue surface pitting. Here the prepitting crack is modeled as an inclined planar surface crack in a three-dimensional half-space. Rolling contact is simulated as a line load with both normal and shear components, moving with constant velocity over the surface of the half-space. A frictional heat input in the contact region is included to incorporate the thermal loading. The body force method for three-dimensional fracture mechanics is utilized to determine the three modes of stress intensity factors along the crack contour, which quantify crack growth. Numerical results for the stress intensity factors over a loading cycle are given for a semicircular crack. The effects of two thermal parameters, one representing heat input strength and the other representing velocity of the contact region, on the stress intensity factors are determined.
| Original language | English |
|---|---|
| Pages (from-to) | 237-261 |
| Number of pages | 25 |
| Journal | Journal of Thermal Stresses |
| Volume | 13 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1990 |
Bibliographical note
Funding Information:The authors are grateful for support from the Center for Engineering Tribology at Northwestern University and also from the National Science Foundation. T. Goshima is grateful to the Officers of Toyama University for granting him a leave of absence to visit Northwestern University . Gratitude is also extended to one of the reviewers for his many helpful suggestions, particularly with identifying the constants Hand TJ.
ASJC Scopus subject areas
- Materials Science (all)
- Condensed Matter Physics