Detection and Measurement of Matrix Discontinuities in UHPFRC by Means of Distributed Fiber Optics Sensing
| Autor: | Bartlomiej Sawicki, Dominique Leduc, Xavier Chapeleau, Eugen Brühwiler, Antoine Bassil |
|---|---|
| Přispěvatelé: | Laboratory of Maintenance and Safety of Structures [Lausanne] (MCS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Structure et Instrumentation Intégrée (COSYS-SII ), Université Gustave Eiffel, 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, Institut de Recherche en Génie Civil et Mécanique (GeM), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS), INFRASTAR |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
crack opening
Optical fiber Full scale MATERIAU COMPOSITE 020101 civil engineering 02 engineering and technology SHM lcsh:Chemical technology 01 natural sciences Biochemistry 0201 civil engineering Analytical Chemistry law.invention distributed fiber optic sensors law sensor MICROCRACKING lcsh:TP1-1185 Instrumentation Structural material IMAGE NUMERIQUE Structural engineering Atomic and Molecular Physics and Optics testing EXTENSOMETRE Structural health monitoring MICROFISSURE Digital image correlation Materials science GIS_publi Context (language use) FISSURE Article DETECTION DIC DEFORMATION BETON surface Electrical and Electronic Engineering RESISTANCE DES MATERIAUX Reflectometry business.industry crack detection 010401 analytical chemistry strain transfer 0104 chemical sciences REFLECTOMETRIE FIBRE OPTIQUE [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] permeability business installation UHPFRC Beam (structure) |
| Zdroj: | Sensors, Vol 20, Iss 3883, p 3883 (2020) Sensors Sensors, 2020, 20 (14), pp.1-20. ⟨10.3390/s20143883⟩ Sensors, MDPI, 2020, 20 (14), pp.1-20. ⟨10.3390/s20143883⟩ Volume 20 Issue 14 Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| Popis: | Following the significant improvement in their properties during the last decade, Distributed Fiber Optics sensing (DFOs) techniques are nowadays implemented for industrial use in the context of Structural Health Monitoring (SHM). While these techniques have formed an undeniable asset for the health monitoring of concrete structures, their performance should be validated for novel structural materials including Ultra High Performance Fiber Reinforced Cementitious composites (UHPFRC). In this study, a full scale UHPFRC beam was instrumented with DFOs, Digital Image Correlation (DIC) and extensometers. The performances of these three measurement techniques in terms of strain measurement as well as crack detection and localization are compared. A method for the measurement of opening and closing of localized fictitious cracks in UHPFRC using the Optical Backscattering Reflectometry (OBR) technique is verified. Moreover, the use of correct combination of DFO sensors allows precise detection of microcracks as well as monitoring of fictitious cracks&rsquo opening. The recommendations regarding use of various SHM methods for UHPFRC structures are given. |
| Databáze: | OpenAIRE |
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