Premium
Investigating the effects of loading, mechanical properties and layers geometry on fatigue life of asphalt pavements
Author(s) -
Ziari Hassan,
Aliha Mohammad Reza Mohammad,
Mojaradi Barat,
Jebalbarezi Sarbijan Majid
Publication year - 2019
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12928
Subject(s) - materials science , stiffness , asphalt , structural engineering , crack closure , finite element method , stress intensity factor , stress (linguistics) , stress concentration , composite material , fracture mechanics , engineering , linguistics , philosophy
In this paper, fatigue life, crack growth trajectory, and stress intensity factors of top‐down and bottom‐up cracks have been investigated in a multilayered asphalt pavement using numerical method. Finite element models, Paris law, and maximum tangential stress criteria were used to determine the effects of vehicle position, thickness, and stiffness of layers on fatigue life of pavements. The results show that the minimum fatigue life of pavements with top‐down crack occurs when the wheels are symmetrically located relative to the crack plane. On the other side, in pavements with bottom‐up crack, it occurs when the front tire located on top of the crack. Moreover, the result reveals that the top‐down crack grows slower than bottom‐up crack. Also, the surface layer's stiffness has the most effect on fatigue life of pavement.