Optical Infrared Thermography of CFRP with Artificial Defects: Performance of Various Post-Processing Techniques

Proceedings

Segers, Joost¹  Poelman, Gaétan²  Tellez, Javier Andres Calderon³  Hedayatrasa, Saeid⁴ 

[1]Author to whom correspondence should be addressed.

[2]Department of Materials, Textiles and Chemical Engineering (MaTCh), Ghent University, Technologiepark-Zwijnaarde 903, 9052 Zwijnaarde, Belgium

[3]Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018

[4]SIM Program M3 DETECT-IV, Technologiepark-Zwijnaarde 935, B-9052 Zwijnaarde, Belgium

关键词: non-destructive testing;    CFRP;    lock-in thermography;    flash thermography;    post-processing;   

DOI  :  10.3390/ICEM18-05358

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This paper treats an experimental study that focusses on optical infrared thermography for non-destructive testing of composites through lock-in and flash excitation. Different fiber reinforced plastics with various artificial defects have been investigated. Three different post-processing techniques are applied, namely fast Fourier transform (FFT), principal component analysis (PCA) and thermographic signal reconstruction (TSR). A comparison between the different excitation and post-processing methods is performed, and their strengths and weaknesses in detecting artificial defects in composites are evaluated and discussed.

【 授权许可】

CC BY