The Indication of Damage in Concrete by Amplitude-Frequency of Acoustic Emission Signal

Zhi Yu Jin; Qi Yin Shi; Qing Li; Fan Yang

doi:10.4028/www.scientific.net/AMM.638-640.1436

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 638-640The Indication of Damage in Concrete by...

The Indication of Damage in Concrete by Amplitude-Frequency of Acoustic Emission Signal

Abstract:

When the concrete is in the process of load, the curve of amplitude - frequency shows significant characteristic of exponential. As the load increases, the acoustic emission signals gradually become complete, the more obvious features of this exponential function. Using the least squares method, we can get an empirical function expression by fitting the data.Function expression has different regression coefficients in different load stages, and regression coefficients changing with load also presents certain rules, which has a good indication to qualitative process of structural damage.

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Periodical:

Applied Mechanics and Materials (Volumes 638-640)

Pages:

1436-1440

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.638-640.1436

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Online since:

September 2014

Authors:

Zhi Yu Jin, Qi Yin Shi, Qing Li, Fan Yang*

Keywords:

Acoustic Emission, Concrete, Damage Indication

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* - Corresponding Author

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