Prediction of Frequency for Simulation of Asphalt Mix Fatigue Tests Using MARS and ANN
Joint Authors
Ghanizadeh, Ali Reza
Fakhri, Mansour
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-04
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Fatigue life of asphalt mixes in laboratory tests is commonly determined by applying a sinusoidal or haversine waveform with specific frequency.
The pavement structure and loading conditions affect the shape and the frequency of tensile response pulses at the bottom of asphalt layer.
This paper introduces two methods for predicting the loading frequency in laboratory asphalt fatigue tests for better simulation of field conditions.
Five thousand (5000) four-layered pavement sections were analyzed and stress and strain response pulses in both longitudinal and transverse directions was determined.
After fitting the haversine function to the response pulses by the concept of equal-energy pulse, the effective length of the response pulses were determined.
Two methods including Multivariate Adaptive Regression Splines (MARS) and Artificial Neural Network (ANN) methods were then employed to predict the effective length (i.e., frequency) of tensile stress and strain pulses in longitudinal and transverse directions based on haversine waveform.
It is indicated that, under controlled stress and strain modes, both methods (MARS and ANN) are capable of predicting the frequency of loading in HMA fatigue tests with very good accuracy.
The accuracy of ANN method is, however, more than MARS method.
It is furthermore shown that the results of the present study can be generalized to sinusoidal waveform by a simple equation.
American Psychological Association (APA)
Ghanizadeh, Ali Reza& Fakhri, Mansour. 2014. Prediction of Frequency for Simulation of Asphalt Mix Fatigue Tests Using MARS and ANN. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-1049928
Modern Language Association (MLA)
Ghanizadeh, Ali Reza& Fakhri, Mansour. Prediction of Frequency for Simulation of Asphalt Mix Fatigue Tests Using MARS and ANN. The Scientific World Journal No. 2014 (2014), pp.1-16.
https://search.emarefa.net/detail/BIM-1049928
American Medical Association (AMA)
Ghanizadeh, Ali Reza& Fakhri, Mansour. Prediction of Frequency for Simulation of Asphalt Mix Fatigue Tests Using MARS and ANN. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-1049928
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049928