Active Thermography in Qualitative Evaluation of Protective Materials [PDF]
International Journal of Occupational Safety and Ergonomics, 2009 This is a study of the possibilities of a qualitative evaluation of protective materials with active thermography. It presents a simulation of a periodic excitation of a multilayer composite material. Tests were conducted with lock-in thermography on Kevlar composite consisting of 16 layers of Kevlar fabric reinforced with formaldehyde resin with ...
Grzegorz, Gralewicz, Bogusław, Wiecek
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Automatic Detection of Defects Using Active Thermography [PDF]
Engineering ProceedingsThe increase in composite material waste from the aviation and wind energy sectors will become a significant environmental challenge in the near future. This escalation is attributed to the enhanced use of new, advanced composite materials, such as Glass
Miguel Gómez, David Castro
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Advancing Active Thermography for NDT: The Role of Standardization [PDF]
ProceedingsInfrared thermography, particularly its active form, is increasingly used in various industries in non-destructive testing (NDT). To support its broader adoption, structured standardization efforts have been developed within CEN/TC 138/WG11 and ...
Giuseppe Dell’Avvocato +12 more
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Dual-band active thermography on infrared transparent materials [PDF]
, 2022 S.189-200Infrared semi-transparent materials, like zirconia thermal barrier coatings on steel, CFRP, wood and human skin were investigated by flash excited pulsed and laser excited lock-in thermography.
Abuhamad, M., Netzelmann, U.
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Induction thermography: principle, applications and first steps towards standardisation [PDF]
, 2022 S.170-181A survey on theory, characteristic quantities and the experimental technique of induction thermography is given. Induction thermography is used for surface defect detection in forged parts of ferromagnetic steel at typical frequencies of 100-300
Walle, G. +5 more
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Defect Shape Detection and Defect Reconstruction in Active Thermography by means of Two-Dimensional Convolutional Neural Network as well as Spatiotemporal Convolutional LSTM Network [PDF]
, 2022 126144A neural network (NN) for semantic segmentation (U-Net) was used for the detection of crack-type defects from thermography sequences. For this task, data sequences of forged steel parts were acquired through induction thermography and the ...
Netzelmann, Udo +2 more
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Study of multi-long-pulse thermography using high-power fiber lasers
AIP Advances, 2023 Active infrared thermography tests are performed using a high-power continuous fiber laser as the excitation source. Multi-long-pulses (MLPs) are used to detect deep defects in samples with reduced heating.
Gangbo Hu +4 more
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Characterizing complex metal-CFRP-hybrid structures by thermography [PDF]
, 2022 Paper QIRT-2020-083, 2 S.In this paper results of non-destructive testing of metal-CFRP-hybrid structures are shown. The hybrid samples vary from 2D to 3D geometry.
Hell, Alexander +2 more
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A Miniaturized Active Thermography System to Inspect Composite Laminates [PDF]
IEEE Transactions on Industrial Informatics, 2021 With the rapid increase of the integration and complexity of industrial components, the inaccessibility and inapplicability of existing nondestructive testing devices have become a bottleneck for in situ inspection of these objects. This article introduces a miniaturized active thermography system featured with a small-size, low-resolution, and low ...
Weixiang Du +5 more
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Active thermography to look beneath the surface of a historic German aircraft
Research and Review Journal of Nondestructive Testing, 2023 Thermography is a well-established non-destructive testing technique in materials research and defect detection. In addition, it is used on cultural heritage in the form of buildings and paintings.
Julia Frisch +4 more
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