A comparative investigation for the nondestructive testing of honeycomb structures by holographic interferometry and infrared thermography

Сфарра, Стефано; Ibarra-Castanedo, Clemente; Avdelidis, Nicolas P.; Genest, Marc; Bouchagier, L; Kourousis, D; Tsimogiannis, A; Anastassopoulous, A; Bendada, A.; Maldague, Xavier; Ambrosini, Dario; Paoletti, Domenica

doi:10.1088/1742-6596/214/1/012071

Cited by 21 publications

(15 citation statements)

References 3 publications

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“…Infrared thermography is based on the temperature difference. There are two kinds of thermography: active and passive [ 57 , 58 ]. Active Thermography (AT) is defined as applying a stimulus to a target to cause the target to heat or cool in such a way as to allow characteristics of the target to be observed when viewed by thermal imagery.…”

Section: Optical Methods and Applicationsmentioning

confidence: 99%

A Review of Optical NDT Technologies

Zhu

Tian

et al. 2011

Sensors

196

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Optical non-destructive testing (NDT) has gained more and more attention in recent years, mainly because of its non-destructive imaging characteristics with high precision and sensitivity. This paper provides a review of the main optical NDT technologies, including fibre optics, electronic speckle, infrared thermography, endoscopic and terahertz technology. Among them, fibre optics features easy integration and embedding, electronic speckle focuses on whole-field high precision detection, infrared thermography has unique advantages for tests of combined materials, endoscopic technology provides images of the internal surface of the object directly, and terahertz technology opens a new direction of internal NDT because of its excellent penetration capability to most of non-metallic materials. Typical engineering applications of these technologies are illustrated, with a brief introduction of the history and discussion of recent progress.

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Section: Optical Methods and Applicationsmentioning

confidence: 99%

A Review of Optical NDT Technologies

Zhu

Tian

et al. 2011

Sensors

196

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“…IRT has proven to be an effective tool to detect and, in many cases, quantify these material flaws. The most common materials and types of damage in aerospace components that can be monitored with IRT are reported in Table 1 and illustrated in Figure 1 [ 7 , 8 , 9 , 10 , 11 ].…”

Section: Infrared Thermography For Aerospace Applicationsmentioning

confidence: 99%

Recent Advances in Active Infrared Thermography for Non-Destructive Testing of Aerospace Components

Ciampa

Mahmoodi

Pinto

et al. 2018

Sensors

366

185

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Active infrared thermography is a fast and accurate non-destructive evaluation technique that is of particular relevance to the aerospace industry for the inspection of aircraft and helicopters’ primary and secondary structures, aero-engine parts, spacecraft components and its subsystems. This review provides an exhaustive summary of most recent active thermographic methods used for aerospace applications according to their physical principle and thermal excitation sources. Besides traditional optically stimulated thermography, which uses external optical radiation such as flashes, heaters and laser systems, novel hybrid thermographic techniques are also investigated. These include ultrasonic stimulated thermography, which uses ultrasonic waves and the local damage resonance effect to enhance the reliability and sensitivity to micro-cracks, eddy current stimulated thermography, which uses cost-effective eddy current excitation to generate induction heating, and microwave thermography, which uses electromagnetic radiation at the microwave frequency bands to provide rapid detection of cracks and delamination. All these techniques are here analysed and numerous examples are provided for different damage scenarios and aerospace components in order to identify the strength and limitations of each thermographic technique. Moreover, alternative strategies to current external thermal excitation sources, here named as material-based thermography methods, are examined in this paper. These novel thermographic techniques rely on thermoresistive internal heating and offer a fast, low power, accurate and reliable assessment of damage in aerospace composites.

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“…Time (seconds) 0 Difference: Face sheet only and face sheet bonded to core the adhesive, and the core, equation (1). For points B and C the analytical model contains 1 layer (face sheet layer only) and 2 layers (face sheet and the core), equations (2) and (3) respectively.…”

Section: -D Modelingmentioning

confidence: 99%

“…There is a growing interest in the application of thermal methods for nondestructive evaluation (NDE) of composite sandwich structures [1][2][3]. Some of the advantages of thermal NDE are noncontact, rapid, capable of imaging large areas, applicable to complex geometries, and quantitative.…”

Section: Introductionmentioning

confidence: 99%

Thermal inspection of composite honeycomb structures

Zalameda

Parker

2014

SPIE Proceedings

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Composite honeycomb structures continue to be widely used in aerospace applications due to their low weight and high strength advantages. Developing nondestructive evaluation (NDE) inspection methods are essential for their safe performance. Pulsed thermography is a commonly used technique for composite honeycomb structure inspections due to its large area and rapid inspection capability. Pulsed thermography is shown to be sensitive for detection of face sheet impact damage and face sheet to core disbond. Data processing techniques, using principal component analysis to improve the defect contrast, are presented. In addition, limitations to the thermal detection of the core are investigated. Other NDE techniques, such as computed tomography X-ray and ultrasound, are used for comparison to the thermography results.

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A comparative investigation for the nondestructive testing of honeycomb structures by holographic interferometry and infrared thermography

Cited by 21 publications

References 3 publications

A Review of Optical NDT Technologies

A Review of Optical NDT Technologies

Recent Advances in Active Infrared Thermography for Non-Destructive Testing of Aerospace Components

Thermal inspection of composite honeycomb structures

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