Abstract
The objective of this study was to quantify pavement damage due to a conventional (385/65R22.5) and a new generation of wide-base (445/ 50R22.5) tires using three-dimensional (3D) finite element (FE) analysis. The investigated new generation of wide-base tires has wider treads and greater load-carrying capacity than the conventional wide-base tire. In addition, the contact patch is less sensitive to loading and is especially designed to operate at 690kPa inflation pressure at 121km/hr speed for full load of l5lkN tandem axle. The developed FE models simulated the tread sizes and applicable contact pressure for each tread and utilized laboratory-measured pavement material properties. In addition, the models were calibrated and properly validated using field-measured stresses and strains. Comparison was established between the two wide-base tire types and the dual-tire assembly. Results indicated that the 445/50R22.5 wide-base tire would cause more fatigue damage, approximately the same rutting damage and less surface-initiated top-down cracking than the conventional dual-tire assembly. On the other hand, the conventional 385/65R22.5 wide-base tire, which was introduced more than two decades ago, caused the most damage.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 210-226 |
| Number of pages | 17 |
| Journal | Tire Science and Technology |
| Volume | 33 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 2005 |
Keywords
- Finite element
- Pavement damage
- Wide-base tire
ASJC Scopus subject areas
- Automotive Engineering
- Mechanics of Materials
- Polymers and Plastics
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