Detection of Multiple Cracks in Four-Point Bending Tests Using the Coda Wave Interferometry Method
| Autor: | Xin Wang, Joyraj Chakraborty, Ernst Niederleithinger, Antoine Bassil |
|---|---|
| Přispěvatelé: | BAM Bundesanstalt für Materialforschung u. -prüfung, Research and development department [Krakow], NeoStrain Sp. z o.o. [Kraków], Statistical Inference for Structural Health Monitoring (I4S), Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Département Composants et Systèmes (COSYS), Université Gustave Eiffel-Université Gustave Eiffel, Structure et Instrumentation Intégrée (COSYS-SII ), Université Gustave Eiffel, INFRASTAR |
| Rok vydání: | 2020 |
| Předmět: |
Digital image correlation
Optical fiber Materials science INTERFEROMETRIE Acoustics REINFORCED CONCRETE 0211 other engineering and technologies 02 engineering and technology Bending SHM TRANSDUCTEUR lcsh:Chemical technology CRACKS FISSURE 01 natural sciences Biochemistry Article Analytical Chemistry law.invention DETECTION law 021105 building & construction 0103 physical sciences lcsh:TP1-1185 Electrical and Electronic Engineering RESISTANCE DES MATERIAUX 010301 acoustics Instrumentation Strain gauge CODA WAVE INTERFEROMETRY DAMAGE DETECTION BETON ARME Linear variable differential transformer ULTRASON Atomic and Molecular Physics and Optics [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph] Interferometry Transducer [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] FIBRE OPTIQUE Ultrasonic sensor METROLOGIE INTERFERENCE ELECTROMAGNETIQUE ONDE ELECTROMAGNETIQUE |
| Zdroj: | Sensors Sensors, MDPI, 2020, 20 (7), 17p. ⟨10.3390/s20071986⟩ Volume 20 Issue 7 Sensors (Basel, Switzerland) Sensors, Vol 20, Iss 1986, p 1986 (2020) Sensors, 2020, 20 (7), 17p. ⟨10.3390/s20071986⟩ |
| ISSN: | 1424-8220 |
| Popis: | International audience; The enlargement of the cracks outside the permitted dimension is one of the main causes for the reduction of service life of Reinforced Concrete (RC) structures. Cracks can develop due to many causes such as dynamic or static load. When tensile stress exceeds the tensile strength of RC, cracks appear. Traditional techniques have limitations in early stage damage detection and localisation, especially on large-scale structures. The ultrasonic Coda Wave Interferometry (CWI) method using diffuse waves is one of the most promising methods to detect subtle changes in heterogeneous materials, such as concrete. In this paper, the assessment of the CWI method applied for multiple cracks opening detection on two specimens based on four-point bending test is presented. Both beams were monitored using a limited number of embedded Ultrasonic (US) transducers as well as other transducers and techniques (e.g., Digital Image Correlation (DIC), LVDT sensors, strain gauges, and Fiber Optics Sensor (FOS)). Results show that strain change and crack formation are successfully and efficiently detected by CWI method even earlier than by the other techniques. The CWI technique using embedded US transducers is undoubtedly a feasible, efficient, and promising method for long-term monitoring on real infrastructure. |
| Databáze: | OpenAIRE |
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