Evaluation of nondestructive testing methods for the detection of fretting damage

Forsyth, David; Genest, Marc; Shaver, Jason; Mills, Thomas B.

doi:10.1016/j.ijfatigue.2006.09.012

Cited by 16 publications

(7 citation statements)

References 8 publications

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“…For instance, Non-Destructive Testing (NDT) methods that visualize the propagation of ultrasonic waves in solids are applicable to inspections of composite structures for disbonding detections [8]. These methods are also applied to detect fretting damage on the faying surfaces of intact specimens representing aircraft fuselage joint construction [9].…”

Section: State-of-the Art Non-destructive Testing Methodsmentioning

confidence: 99%

Knowledge-based support in Non-Destructive Testing for health monitoring of aircraft structures

Kamsu-Foguem

2012

Advanced Engineering Informatics

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Maintenance manuals include general methods and procedures for industrial maintenance and they contain information about principles of maintenance methods. Particularly, Non-Destructive Testing (NDT) methods are important for the detection of aeronautical defects and they can be used for various kinds of material and in different environments. Conventional non-destructive evaluation inspections are done at periodic maintenance checks. Usually, the list of tools used in a maintenance program is simply located in the introduction of manuals, without any precision as regards to their characteristics, except for a short description of the manufacturer and tasks in which they are employed. Improving the identification concepts of the maintenance tools is needed to manage the set of equipments and establish a system of equivalence: it is necessary to have a consistent maintenance conceptualization, flexible enough to fit all current equipment, but also all those likely to be added/used in the future. Our contribution is related to the formal specification of the system of functional equivalences that can facilitate the maintenance activities with means to determine whether a tool can be substituted for another by observing their key parameters in the identified characteristics. Reasoning mechanisms of conceptual graphs constitute the baseline elements to measure the fit or unfit between an equipment model and a maintenance activity model. Graph operations are used for processing answers to a query and this graph-based approach to the search method is in-line with the logical view of information retrieval. The methodology described supports knowledge formalization and capitalization of experienced NDT practitioners. As a result, it enables the selection of a NDT technique and outlines its capabilities with acceptable alternatives.

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Section: State-of-the Art Non-destructive Testing Methodsmentioning

confidence: 99%

Knowledge-based support in Non-Destructive Testing for health monitoring of aircraft structures

Kamsu-Foguem

2012

Advanced Engineering Informatics

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“…(7) Eq. (7) states that the total fieldĜ can be written as the sum of the incident and the scattered waves.…”

Section: The Modelmentioning

confidence: 99%

“…(7) Eq. (7) states that the total fieldĜ can be written as the sum of the incident and the scattered waves. The term ρ jĜ0 (x, ξ j ; ω)Ĝ(ξ j , x s ; ω) represents the scattered field at position y due to scatterer at ξ j .…”

Section: The Modelmentioning

confidence: 99%

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Passive imaging with cross correlations in a discrete random medium

2010

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The purpose of this paper is to study the potential and limitations of cross-correlation techniques using numerical simulations, and in particular, we intend to show (i) an estimate of the Green's function in different configurations and (ii) results for passive imaging. This problem seems especially interesting in seismology, nondestructive testing, structure health monitoring, and wireless sensor networks. To compute cross correlations of the impulse signals collected by the receivers, we consider scattering by discrete scatterers to generate impluse responses with targets and without targets. We compute the difference of the cross correlations with targets and the cross correlations without targets to estimate the backpropagator (Green's function) in the Kirchhoff migration functional. The migration functional is essential to compute images of targets. We run numerical simulations for different configurations to explore the limitations of this cross correlation methodology from the results of passive imaging.

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“…Mechanics : Misalignment between mechanical parts induce heat which can easily be detected 26 , fretting 39,40 . malfunctioning are among the most numerous applications of IR.…”

Section: Lockin Thermography (Lt) 33-35mentioning

confidence: 99%

Infrared imaging and machine vision

Mériaudeau

2007

SPIE Proceedings

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This paper aims at reviewing the recent published works dealing with industrial applications which rely on Infrared Radiation and of its main variations. Some of its applications are reviewed domain by domain. Distinction between near infrared (visible to 1.1 microns) which enables high temperature measurements, versus classical IR spectrum( SW and LW) range used for low temperature range is done, as well as difference between active and passive thermography.

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Evaluation of nondestructive testing methods for the detection of fretting damage

Cited by 16 publications

References 8 publications

Knowledge-based support in Non-Destructive Testing for health monitoring of aircraft structures

Knowledge-based support in Non-Destructive Testing for health monitoring of aircraft structures

Passive imaging with cross correlations in a discrete random medium

Infrared imaging and machine vision

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