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Modelling the Hysteresis Loops of Hot Mix Asphalt

Ahmed, Taher M.

Abstract This study presents the first attempt to use the Bouc-Wen model to model non-linear hysteresis loops of hot mix asphalt (HMA) samples tested in fatigue in controlled strain mode using a dynamic shear rheometer (DSR). A non-linear least squares optimization was used to identify the Bouc-Wen parameters. In this work, cylindrical samples (12 mm in diameter, 50 mm in height) fabricated from a HMA called dense bitumen macadam (DBM) were tested in fatigue. The outcome of this work confirmed the existence of a good agreement between modelled and experimental hysteresis loops.

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Modelling the Hysteresis Loops of Hot Mix Asphalt

Ahmed, Taher M.

Abstract This study presents the first attempt to use the Bouc-Wen model to model non-linear hysteresis loops of hot mix asphalt (HMA) samples tested in fatigue in controlled strain mode using a dynamic shear rheometer (DSR). A non-linear least squares optimization was used to identify the Bouc-Wen parameters. In this work, cylindrical samples (12 mm in diameter, 50 mm in height) fabricated from a HMA called dense bitumen macadam (DBM) were tested in fatigue. The outcome of this work confirmed the existence of a good agreement between modelled and experimental hysteresis loops.

Modelling the Hysteresis Loops of Hot Mix Asphalt

Ahmed, Taher M.

Abstract This study presents the first attempt to use the Bouc-Wen model to model non-linear hysteresis loops of hot mix asphalt (HMA) samples tested in fatigue in controlled strain mode using a dynamic shear rheometer (DSR). A non-linear least squares optimization was used to identify the Bouc-Wen parameters. In this work, cylindrical samples (12 mm in diameter, 50 mm in height) fabricated from a HMA called dense bitumen macadam (DBM) were tested in fatigue. The outcome of this work confirmed the existence of a good agreement between modelled and experimental hysteresis loops.

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Title:

Modelling the Hysteresis Loops of Hot Mix Asphalt

Contributors:

Ahmed, Taher M. (author)

Published in:

8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements ; 25-32

RILEM Bookseries ; 13

Publication date:

2016-01-01

Size:

8 pages

ISBN:

978-94-024-0867-6 , 978-94-024-0866-9

ISSN:

2211-0844 , 2211-0852

DOI:

https://doi.org/10.1007/978-94-024-0867-6_4

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Fatigue , Bouc-Wen , HMA , DSR Engineering , Building Materials , Characterization and Evaluation of Materials , Theoretical and Applied Mechanics , Computational Mathematics and Numerical Analysis

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