Applying the heat conduction-based 3D normalization and thermal tomography to pulsed infrared thermography for defect characterization in composite materials

Pawar, Sachin; Вавилов, В. П.

doi:10.1016/j.ijheatmasstransfer.2015.11.018

Cited by 39 publications

(7 citation statements)

References 13 publications

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“…Pawar y Vavilov [51] expresan que las falsas detecciones relacionadas a las propiedades ópticas no uniformes sobre un material inspeccionado con termografía pulsada son un problema típico que se puede atenuar haciendo uso de técnicas de normalización. Para este caso se presenta una versión 3D del método conocido como normalización 1D (división de toda la secuencia de imágenes térmicas por una imagen), presentando como resultados la reducción de los efectos por calentamiento no uniforme y difusión lateral del calor.…”

Section: A Técnicas De Procesamientounclassified

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

2022

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En este artículo se sintetiza una revisión de los principales trabajos relacionados con ensayo no destructivo usando termografía infrarroja incluyendo aportes realizados por investigadores de América Latina. Se encontró en este campo una tendencia creciente de la producción académica en los últimos años, lo cual ratifica que es un área de interés y desarrollo continuo. El resultado de la revisión se clasificó en cuatro líneas temáticas cubriendo principalmente: i) trabajos que recopilan el estado del arte, ii) desarrollos en técnicas de procesamiento de información térmica, iii) indicadores de desempeño y iv) simulación, modelos térmicos y campos de aplicación. Adicionalmente, se registraron los países tradicionales y emergentes que están generando contribuciones en el sector del ensayo no destructivo usando termografía infrarroja. Finalmente, se identificó cómo el enfoque actual del procesamiento de información térmica está orientado al procesamiento de secuencias de imágenes, donde el número de técnicas es cada vez mayor y se evidenció una reducida cantidad de métricas para la evaluación objetiva de su rendimiento

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Section: A Técnicas De Procesamientounclassified

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

2022

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“…Zhao et al [ 52 ] used the Coefficient Clustering Analysis (CSA) method coupled to PT, whilst Chang et al [ 49 ] employed the Multi-dimensional Ensemble Empirical Decomposition (MEEMD) algorithm to quantify material damage in impacted CFRP composites. Pawar and Vavilov [ 48 ] used a 3D Normalisation Algorithm (3DNA) for PT to compensate the background non-uniformity in both damaged glass and carbon fibre reinforced composites. Tang et al [ 66 ] combined the Markov and Principal Component Thermography (PCT) algorithm with PT in order to detect debonding in ceramic thermal barrier coatings for aerospace.…”

Section: Optically Stimulated Thermographymentioning

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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Section: Introductionmentioning

confidence: 99%

“…For the quantitative detection of thermal defects, some research has been done, mainly two kinds, that with an external excitation source [11] and that without an external excitation source [12]. In terms of detection methods with an external excitation source, Yi et al [13] presented eddy current pulse compression thermography to detect surface and subsurface defects at various depths in an aluminium sample.…”

Section: Introductionmentioning

confidence: 99%

Novel detection approach for thermal defects: Study on its feasibility and application to vehicle cables

et al. 2022

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It is important to accurately assess the thermal defect state of equipment to ensure its safe operation. A novel thermal defect detection method called the square even-order derivative method is proposed. First, the derivative functions of temperature were constructed to investigate the main-side-peak characteristics of the derivative curve, and the mathematical expressions for the position, depth, intensity of the defects, and parameters of the derivative curve were deduced, which can be used to quantitatively detect the defects. Then, numerical and experimental analyses of an example case of defected epoxy resin plates were carried out to verify that thermal defects can be effectively and accurately detected by the proposed method. Finally, the method was applied to a vehicle cable to detect its thermal defects in another example case of defected vehicle cable, which preliminarily validated the feasibility of the proposed method in practical applications.

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Applying the heat conduction-based 3D normalization and thermal tomography to pulsed infrared thermography for defect characterization in composite materials

Cited by 39 publications

References 13 publications

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

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

Novel detection approach for thermal defects: Study on its feasibility and application to vehicle cables

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