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Kim, Jae Hong
Research Group for Concrete Structures and Materials
Research Interests
  • Mechanics of Concrete, Rheology, Structural Analysis, Construction Performance
  • Rheological investigation for the flow of fresh concrete
  • Multiscale material characterization of suspension

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Nondestructive evaluation of elastic properties of concrete using simulation of surface waves

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Title
Nondestructive evaluation of elastic properties of concrete using simulation of surface waves
Author
Kim, Jae HongKwak, Hyo-Gyoung
Keywords
STRUCTURAL SYSTEM-IDENTIFICATION; CEMENT-BASED MATERIALS; NEURAL-NETWORK; HIGHRISE BUILDINGS; ATTENUATION; ALGORITHM
Issue Date
2008-11
Publisher
WILEY-BLACKWELL
Citation
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING, v.23, no.8, pp.611 - 624
Abstract
Nondestructive evaluation using the propagation of an impact-induced surface wave can be effectively applied in estimating in situ material properties. In this study, to evaluate information of a surface waveform beyond the simple wave velocity, artificial intelligence engines are employed to estimate simulation parameters, that is, the properties of elastic materials. The developed artificial neural networks are trained with a numerical database having secured its stability. In the process, the appropriate shape of the force-time function for an impact load is assumed so as to avoid Gibbs phenomenon, and the proposed principal wavelet-component analysis accomplishes a feature extraction with a wavelet transformed signal. The results of estimation are validated with experiments focused on concrete materials.
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DOI
10.1111/j.1467-8667.2008.00562.x
ISSN
1093-9687
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UEE_Journal Papers
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