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Pregled bibliografske jedinice broj: 328302

Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results


Suša, Mirela; Ibarra-Castanedo, Clemente; Maldague, Xavier; Bendada, Abelhakim; Švaić, Srećko; Boras, Ivanka
Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results // CD Proceedings IV Pan American Conference for Non Destructive Testing 2007 / Marta Clelia Ruch (ur.).
Buenos Aires: Asociación Argentina de Ensayos No Destructivos y Estructurales, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


CROSBI ID: 328302 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results

Autori
Suša, Mirela ; Ibarra-Castanedo, Clemente ; Maldague, Xavier ; Bendada, Abelhakim ; Švaić, Srećko ; Boras, Ivanka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
CD Proceedings IV Pan American Conference for Non Destructive Testing 2007 / Marta Clelia Ruch - Buenos Aires : Asociación Argentina de Ensayos No Destructivos y Estructurales, 2007

ISBN
978-987-23957-0-4

Skup
IV Pan American Conference for Non Destructive Testing 2007

Mjesto i datum
Buenos Aires, Argentina, 22.10.2007. - 26.10.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
NDT; Infrared Thermography; Pulse Thermography; Finite Element Method;

Sažetak
The purpose of this work was to determine the possibility of modeling complex structure samples inspected by infrared thermography, as well as the possibility of identifying the defect characteristics, such as the defect type, using the results obtained. The paper presents the analysis of results obtained by pulse thermography experiments on a complex structure sample containing defects. The sample consists of two different honeycomb panels as a core between two graphite-epoxy layers joined with appropriate specified adhesive. Each of the two sample parts contains the same number of defects of different type, size and depth. A pulse thermography experiment was conducted and the results were recorded by high resolution infrared camera as presented in the article. The images obtained were processed so as to enhance the defect visibility. Once the location of the defects was determined, surface temperature evolution curves were extracted above each of the defects as well as in non-defective regions. These curves were used afterwards for numerical model evaluation. As mentioned, the numerical model of the tested sample was made in order to simulate the behavior of the sample under inspection. COMSOL software based on Finite Element Method (FEM) was used to make a 3D model of transient heat transfer. In a similar way as for the results obtained experimentally, the surface temperature evolution curves were extracted from the results of the simulation. Since many of the model parameters were not precisely known (power density of the heat source used in experiment, convective heat transfer coefficients, sample surface emissivity...), they were adjusted to obtain the results of numerical simulation as close as possible to those obtained experimentally. Nevertheless, all of the parameter values determined in such a way were within the range of the expected values. In general, the behavior of the temperature evolution curves obtained numerically fit the experimental results. Some difficulties in comparison aroused as the nonuniform heating was present in the experiment while the model assumed a uniform heating lamp power density distribution over the whole sample surface. This required a careful choice of the reference defect-free regions that was made for each of the defects separately in the recorded thermograms. A difference in behavior obtained experimentally and numerically was observed for only one of the defects. The comparisons performed in this paper enable us to have confidence in the developed model and thus to evaluate, through modelling, the potential performance of infrared thermography on similar specimens.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Projekti:
120-0682094-1816 - Toplinski aparati i uređaji za obnovljive izvore energije - biomasa i Sunce
120-0682094-1901 - Energijska analiza u procesima izgaranja i otplinjavanja drvne biomase (Boras, Ivanka, MZOS ) ( CroRIS)

Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Ivanka Boras (autor)

Avatar Url Srećko Švaić (autor)

Avatar Url Mirela Suša (autor)

Poveznice na cjeloviti tekst rada:

Pristup cjelovitom tekstu rada

Citiraj ovu publikaciju:

Suša, Mirela; Ibarra-Castanedo, Clemente; Maldague, Xavier; Bendada, Abelhakim; Švaić, Srećko; Boras, Ivanka
Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results // CD Proceedings IV Pan American Conference for Non Destructive Testing 2007 / Marta Clelia Ruch (ur.).
Buenos Aires: Asociación Argentina de Ensayos No Destructivos y Estructurales, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Suša, M., Ibarra-Castanedo, C., Maldague, X., Bendada, A., Švaić, S. & Boras, I. (2007) Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results. U: Marta Clelia Ruch (ur.)CD Proceedings IV Pan American Conference for Non Destructive Testing 2007.
@article{article, author = {Su\v{s}a, Mirela and Ibarra-Castanedo, Clemente and Maldague, Xavier and Bendada, Abelhakim and \v{S}vai\'{c}, Sre\'{c}ko and Boras, Ivanka}, year = {2007}, keywords = {NDT, Infrared Thermography, Pulse Thermography, Finite Element Method, }, isbn = {978-987-23957-0-4}, title = {Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results}, keyword = {NDT, Infrared Thermography, Pulse Thermography, Finite Element Method, }, publisher = {Asociaci\'{o}n Argentina de Ensayos No Destructivos y Estructurales}, publisherplace = {Buenos Aires, Argentina} }
@article{article, author = {Su\v{s}a, Mirela and Ibarra-Castanedo, Clemente and Maldague, Xavier and Bendada, Abelhakim and \v{S}vai\'{c}, Sre\'{c}ko and Boras, Ivanka}, year = {2007}, keywords = {NDT, Infrared Thermography, Pulse Thermography, Finite Element Method, }, isbn = {978-987-23957-0-4}, title = {Pulse thermography applied on a complex structure sample: comparison and analysis of numerical and experimental results}, keyword = {NDT, Infrared Thermography, Pulse Thermography, Finite Element Method, }, publisher = {Asociaci\'{o}n Argentina de Ensayos No Destructivos y Estructurales}, publisherplace = {Buenos Aires, Argentina} }




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