Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete

Investigating the behavior of asphalt concrete at low loading frequency is essential to understand the thermal fatigue damage due to cyclic day-night temperature cycles, where the loading frequency is usually very low. This study determines some properties (e.g., fatigue damage, dissipated energy, a...

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Main Authors: Islam M. R., Wollega E.
Format: Article
Language:English
Published: Sumy State University 2022-06-01
Series:Журнал інженерних наук
Subjects:
Online Access:http://jes.sumdu.edu.ua/wp-content/uploads/2022/06/jes_9_1_2022_D1-D5.pdf
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author Islam M. R.
Wollega E.
author_facet Islam M. R.
Wollega E.
author_sort Islam M. R.
collection DOAJ
description Investigating the behavior of asphalt concrete at low loading frequency is essential to understand the thermal fatigue damage due to cyclic day-night temperature cycles, where the loading frequency is usually very low. This study determines some properties (e.g., fatigue damage, dissipated energy, and stiffness) of asphalt concrete beam samples at a low frequency of loading using four-point bending test apparatus. Results show that fatigue damage is more significant at a lower frequency of cyclic loading and the number of cycles at failure becomes stable at a frequency equal to or lower than 0.01 Hz. The concept of initial stiffness at the 50th cycle of loading is inappropriate at a low frequency of loading as the stiffness reduction with a number of loadings is so considerable at a frequency of loading. In addition, the dissipated energy per loading cycle decreases with a decrease in loading frequency.
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spelling doaj.art-b8c58444868b47d4a698ca39025c4fda2022-12-22T04:24:03ZengSumy State UniversityЖурнал інженерних наук2312-24982414-93812022-06-0191D1D510.21272/jes.2022.9(1).d1Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt ConcreteIslam M. R.0Wollega E.1Colorado State University, 2200, Bonforte Blvd, Pueblo, CO 81001, USAColorado State University, 2200, Bonforte Blvd, Pueblo, CO 81001, USAInvestigating the behavior of asphalt concrete at low loading frequency is essential to understand the thermal fatigue damage due to cyclic day-night temperature cycles, where the loading frequency is usually very low. This study determines some properties (e.g., fatigue damage, dissipated energy, and stiffness) of asphalt concrete beam samples at a low frequency of loading using four-point bending test apparatus. Results show that fatigue damage is more significant at a lower frequency of cyclic loading and the number of cycles at failure becomes stable at a frequency equal to or lower than 0.01 Hz. The concept of initial stiffness at the 50th cycle of loading is inappropriate at a low frequency of loading as the stiffness reduction with a number of loadings is so considerable at a frequency of loading. In addition, the dissipated energy per loading cycle decreases with a decrease in loading frequency.http://jes.sumdu.edu.ua/wp-content/uploads/2022/06/jes_9_1_2022_D1-D5.pdfasphalt concretefatigue lifeinitial stiffnessfrequencytemperature
spellingShingle Islam M. R.
Wollega E.
Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
Журнал інженерних наук
asphalt concrete
fatigue life
initial stiffness
frequency
temperature
title Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
title_full Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
title_fullStr Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
title_full_unstemmed Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
title_short Effect of Loading Frequency and Temperature on the Fatigue Parameters of Asphalt Concrete
title_sort effect of loading frequency and temperature on the fatigue parameters of asphalt concrete
topic asphalt concrete
fatigue life
initial stiffness
frequency
temperature
url http://jes.sumdu.edu.ua/wp-content/uploads/2022/06/jes_9_1_2022_D1-D5.pdf
work_keys_str_mv AT islammr effectofloadingfrequencyandtemperatureonthefatigueparametersofasphaltconcrete
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