Experimental modal analysis and finite element model updating for structural health monitoring of reinforced concrete radioactive waste packages

Autor: Cédric Payan, Vincent Garnier, J. N. Eiras, Sandrine T. Rakotonarivo
Přispěvatelé: Ondes et Imagerie (O&I), Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Optimization problem
Computer science
Modal analysis
Dynamic properties
Population
0211 other engineering and technologies
020101 civil engineering
02 engineering and technology
7. Clean energy
0201 civil engineering
12. Responsible consumption
Set (abstract data type)
021105 building & construction
General Materials Science
education
Civil and Structural Engineering
education.field_of_study
business.industry
Finite element model updating
Building and Construction
Structural engineering
[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]
Finite element method
Reinforced concrete
[SPI.GCIV]Engineering Sciences [physics]/Civil Engineering
Modal
Experimental modal analysis
Container (abstract data type)
[SPI.GCIV.DV]Engineering Sciences [physics]/Civil Engineering/Dynamique
vibrations
Structural health monitoring
[SPI.GCIV.STRUCT]Engineering Sciences [physics]/Civil Engineering/Structures
business
Radioactive waste package
Zdroj: Construction and Building Materials
Construction and Building Materials, 2018, 180, pp.531-543. ⟨10.1016/j.conbuildmat.2018.06.004⟩
Construction and Building Materials, Elsevier, 2018, 180, pp.531-543. ⟨10.1016/j.conbuildmat.2018.06.004⟩
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2018.06.004⟩
Popis: International audience; This study envisages the use of modal analysis for monitoring the structural health of radioactive waste packages. To this end, the calibration of a numerical model that describes the dynamic behavior is a critical issue for the success in damage detection. In this study, experimental modal analysis was conducted on a radioactive waste package mockup. The container was tested under different boundary conditions. Then, the experimental modal analysis data was used to update finite element models that describe the observed behaviors. The latter consists in the formulation of an optimization problem that minimizes the differences between the experimental and the numerical data. A two-step methodology is proposed for finite element model updating. First, a full factorial design of experiments allowed estimation of a set of parameters of the numerical model that minimize a cost function. Second, a genetic algorithm was conducted, wherein the initial population of parameters was generated as a function of that set of parameters obtained in the previous step. This study serves as preliminary step towards the implementation of a structural health monitoring based on modal analysis. Specific aspects for the implementation of a modal-based structural health monitoring system in a radioactive waste repository are also summarized.
Databáze: OpenAIRE
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