Paper
Performance Evaluation of Stress Absorbing Membrane Interlayers Considering Debonding Effects
- Authors:
- Ogundipe Olumide Moses
- Abstract
- This study investigates debonding effects on the performance of stress absorbing membrane interlayers (SAMIs) against reflective cracking. This was achieved by carrying out finite element modelling of a typical specimen used for a wheel tracking test. In the modelling, the loads were applied at two points (centre and edge) on the specimen. The predicted results (deflection and strain) were compared with those measured in the laboratory tests. The results showed that the predicted results for the debonding cases matched those measured better than the fully bonded cases. This indicates that the debonding of the interface is expected in a real pavement incorporating SAMIs. Also, the results showed that there was no benefit in using thick SAMI over thin SAMI. It was found that the predicted deflection, strain, and stress increase with increasing temperature.
- Keywords
- Finite Element; Overlay; Debond; Displacement; Strain; Stress
- StartPage
- 25
- EndPage
- 34
- Doi