Structural damage localization from energy density measurements using an energetic approach

Autor:	Tahar Fakhfakh, Ahmed Samet, M.A. Ben Souf, M. N. Ichchou, Mohamed Haddar, Olivier Bareille
Rok vydání:	2018
Předmět:	Damage detection Field (physics) Computer science Mechanical Engineering Inverse 02 engineering and technology Inverse problem 01 natural sciences Numerical methodology IMes Set (abstract data type) chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering chemistry 0103 physical sciences Energy density Biological system 010301 acoustics
Zdroj:	Archive of Applied Mechanics. 88:1075-1087
ISSN:	1432-0681 0939-1533
DOI:	10.1007/s00419-018-1359-9
Popis:	This paper presents a new damage detection strategy for structures, capable of identifying the defects from a set of energy density measurements, at medium and high frequencies. An inverse energetic approach, also called the inverse simplified energy method (IMES), is used for this purpose. It was first developed for the localization and the quantification of vibro-acoustic sources. The main novelty of this paper is to extend this inverse approach to the field of defects detection, to localize the flaw through the knowledge of the energy density field within the structure. A new numerical methodology is proposed in this paper for this purpose. Numerical simulations with different defect cases were performed to validate the presented method. Results show that IMES is an effective predictive tool in structural damage detection.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::92906b661c5dd56cb47110cbe7addde1 https://doi.org/10.1007/s00419-018-1359-9 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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