Detection of Defects in Layered Concrete Based on Rayleigh Surface Wave Method
| Autor: | Shuai Hou, Xiu Shu Tian |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Acoustics 0211 other engineering and technologies 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences symbols.namesake Mechanics of Materials Surface wave 021105 building & construction symbols General Materials Science Rayleigh scattering 0105 earth and related environmental sciences |
| Zdroj: | Key Engineering Materials. 815:210-215 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.815.210 |
| Popis: | Based on the finite element model, the propagation characteristics of Rayleigh wave in layered structure is studied in this paper, the time-domain characteristics of wave form is analysed under different working conditions, and the identification parameters of surface wave method to detect the layered concrete is proposed. When the incident elastic wave propagates to the defect, due to the barrier effect of the defect, a part of the incident R wave is converted into a reflected R wave, which propagates along the track plate to the surface; the other part of the R wave is converted into a transmitted R wave, along the concrete. The energy amplitude can be used as one of the parameters to identify defects in the layered concrete structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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