Abstract
The estimation of defect depth is a crucial parameter in the field of non-destructive testing. The paper presents the simulation aspects for three-dimensional heat transfer equation for a finite thickness steel sample having six blind holes as defects located at different locations using a promising Barker-coded thermal wave imaging technique (BCTWI). The surface of the test sample is subjected to Barker-coded modulated thermal excitation, and the analysis has been carried out using the time domain phase and correlation analysis post-processing approach on the captured data during the active heating. Finally, various adopted processing approaches have been compared to evaluate defect detection capabilities.
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© 2022 Indian Society for Non-destructive Testing
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Rani, A., Sharma, A., Mulaveesala, R. (2022). Barker-Coded Thermal Wave Imaging for Testing and Evaluation of Mild Steel. In: Mandayam, S., Sagar, S.P. (eds) Advances in Non Destructive Evaluation. NDE 2020. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-9093-8_7
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DOI: https://doi.org/10.1007/978-981-16-9093-8_7
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