原文传递
LOW-TEMPERATURE STRESSES AND FRACTURE ANALYSIS OF ASPHALT OVERLAYS.
| 题名： | LOW-TEMPERATURE STRESSES AND FRACTURE ANALYSIS OF ASPHALT OVERLAYS. |
| 作者： | Shalaby-A; Abd-El-Halim-AO; Easa-SM |
| 关键词： | FLEXIBLE-PAVEMENT-DESIGN; LOW-TEMPERATURES; STRESSES-; THERMAL-FRACTURE; BITUMINOUS-OVERLAYS; THERMOELASTICITY-; THERMAL-ANALYSIS; STRESS-ANALYSIS; FINITE-ELEMENT-ANALYSIS; NUMERICAL-ANALYSIS; PAVEMENT-CRACKING; TWO-DIMENSIONAL; THREE-DIMENSIONAL; FRACTURE-MECHANICS; CRACK-PROPAGATION; PAVEMENT-LAYERS; BOND-ADHESION; MATERIALS-CHARACTERIZATION; REINFORCEMENT- |
| 摘要： | Thermal cracking of asphalt overlays is a leading cause of pavement deterioration. The thermoelastic response of a multilayered pavement structure is modeled using a transient thermal analysis followed by a quasi-static stress analysis at discrete time intervals using finite element analysis. Numerical analysis of two- and three-dimensional cracking problems is performed. Based on a fracture mechanics approach, the potential of thermal cracks to propagate through the overlay is examined using both a displacement formula and an energy-balance principle. The interaction between multiple cracks and the effect of bond between layers on crack propagation are examined. The proposed numerical methods for analysis of pavement thermal cracking provide a means to characterize and optimize different evolving materials and innovative pavement reinforcement techniques. |
| 总页数： | Transportation Research Record. 1996. (1539) pp132-139 (12 Fig., 1 Tab., 15 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- DETERMINING THE LOW-TEMPERATURE FRACTURE TOUGHNESS OF ASPHALT MIXTURES.
- LOW-TEMPERATURE FRACTURE TOUGHNESS OF POLYETHYLENE-MODIFIED ASPHALT BINDERS.
- LOW-TEMPERATURE BINDER SPECIFICATION DEVELOPMENT: THERMAL STRESS RESTRAINED SPECIMEN TESTING OF ASPHALT BINDERS AND MIXTURES.
- Evaluation of Predicted Pavement Response with Measured Tire Contact Stresses.
- PROPAGATION MECHANISMS FOR SURFACE-INITIATED LONGITUDINAL WHEELPATH CRACKS (WITH DISCUSSION AND CLOSURE).
- Evaluation of Interlayer Stress Absorbing Composite (ISAC) Reflective Crack Relief System.
检索历史
应用推荐
