Work

Signal reconstruction with infrared thermographic data in the application of rail defect detection

Year: 2024

Type: article

Abstract: Thermographic techniques are widely used to characterize material damage, porosity and, moisture in structures. Thanks to thermographic signal reconstruction (TSR) technique, the active thermography has made significant progress. In this study, the TSR technique was applied to identify a rubber layer that mimics internal defect, which is attached to the back of the steel plate after a 1.0 min thermal stimulation. The peaks of the first and second derivative logarithmic curves correspond to the important time point revealing the position of the attached flaw. Furthermore, a new post-processing technique for infrared-thermographic data is proposed by exploiting polynomial orders of the fitting curves to produce a synthetic image with distinctive contrast of the flaw identification. Finally, the natural shelling defect of rail has been identified with an excellent contrast using upgraded TSR techniques.

Source: Insight - Non-Destructive Testing and Condition Monitoring

DOI: 10.1784/insi.2024.66.10.615

Authors: Ranting Cui, Chaojun Wei, Keping Zhang, Yuning Wu, Xuan Zhu

Institutions: Guangxi University, Guangxi Communication Design Group Co., LTD (China), University of Utah

Language: English

Topic: Thermography and Photoacoustic Techniques

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

OpenAlex ID: W4403308040

FWCI:

Cites: 5

Cited by:

Related to: 10