In recent years, decreased fatigue life, increased rutting, and accelerated serviceability loss in flexible pavements have been attributed to the effects of increased wheel loads as well as increased tire pressures. This effect is more significant in subtropical regions. Thus, the main objective of this research was to evaluate flexible pavement sections under different conditions of axle loads, tire contact pressure and pavement temperatures. Stresses, strains and deflections of different sections were calculated using finite element method. Linear analysis was used to calculate pavement responses of asphalt layers, while non-linear analysis was utilized for granular layers. Moreover, fatigue life of different pavement sections was predicted. Analysis of the results of this paper revealed that, some pavement sections have high safety criteria for 30 years design period and consequently the thickness of asphalt layers could be reduced and other sections are not acceptable for 30 years design period without increasing the layers thickness. Moreover, it was concluded that the axle loads have a very significant influence on fatigue life and rutting of flexible pavements, while the effect of increasing tire contact pressure has lower influence. Also, it can be concluded that temperature has a very significant influence on flexible pavement responses.
El-Hamrawy, S., El-Shourbagy, M., & Moussa, G. (2005). ANALYSIS OF HEAVY DUTY FLEXIBLE PAVEMENT USING FINITE ELEMENT METHOD. ERJ. Engineering Research Journal, 28(3), 267-275. doi: 10.21608/erjm.2005.69966
MLA
S. El-Hamrawy; M. El-Shourbagy; G. Moussa. "ANALYSIS OF HEAVY DUTY FLEXIBLE PAVEMENT USING FINITE ELEMENT METHOD". ERJ. Engineering Research Journal, 28, 3, 2005, 267-275. doi: 10.21608/erjm.2005.69966
HARVARD
El-Hamrawy, S., El-Shourbagy, M., Moussa, G. (2005). 'ANALYSIS OF HEAVY DUTY FLEXIBLE PAVEMENT USING FINITE ELEMENT METHOD', ERJ. Engineering Research Journal, 28(3), pp. 267-275. doi: 10.21608/erjm.2005.69966
VANCOUVER
El-Hamrawy, S., El-Shourbagy, M., Moussa, G. ANALYSIS OF HEAVY DUTY FLEXIBLE PAVEMENT USING FINITE ELEMENT METHOD. ERJ. Engineering Research Journal, 2005; 28(3): 267-275. doi: 10.21608/erjm.2005.69966