Backcalculating pavement structural properties using a Nelder-Mead simplex search
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Title
- Backcalculating pavement structural properties using a Nelder-Mead simplex search
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Author(s)
- Yi, Jin-Hak; Mun, Sungho
- KIOST Author(s)
- Yi, Jin-Hak(이진학)
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Alternative Author(s)
- 이진학
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Publication Year
- 2009-08-15
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Abstract
- A structural integrity assessment technique of pavements that considers the backcalculation of material properties is herein proposed. In order to carry out the backcalculation. a Nelder-Mead simplex (NMS) search is applied to estimate the elastic moduli of layered Structures using the deflection data simulated by falling weight deflectometer (FWD) tests. In order to utilize a forward calculation engine of the numerical simulation in the FWD testing, a wave analysis program of layered pavement systems is used based on a spectral element method. The performance of the NMS inversion technique is evaluated based oil a comparison with the Levenberg-Marquardt method. Copyright (C) 2009 John Wiley &, Sons, Ltd.
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ISSN
- 0363-9061
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/4268
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DOI
- 10.1002/nag.769
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Bibliographic Citation
- INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, v.33, no.11, pp.1389 - 1406, 2009
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Publisher
- WILEY
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Keywords
- falling weight deflectometer; asphalt concrete pavement; inversion technique; Nelder-Mead simplex
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Type
- Article
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Language
- English
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Document Type
- Article
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