Active thermography inspection of CFRP using cyclic heating and Fourier transform—comparison with flash heating method

IF 1.8 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Advanced Composite Materials Pub Date : 2022-11-05 DOI:10.1080/09243046.2022.2141294

M. Ishikawa, Takuto Miura, H. Nishino, T. Kato, Tetsuya Otsuki

引用次数: 1

Abstract

Active thermography nondestructive inspection using cyclic heating and phase images obtained via the Fourier transform is performed for carbon fiber-reinforced plastic (CFRP) specimens, and the defect detection capability of this method is compared with that of the conventional thermography method using flash heating. The experimental results indicate that the defect detection capability is significantly improved when the frequency of the phase image is equal to the cyclic heating frequency. Compared with the flash heating method, a higher signal-to-noise ratio is observed in the phase images obtained via the cyclic heating method, although the temperature increase of the inspection object during heating is lower than that observed during flash heating. These results suggest that the proposed inspection method is effective for CFRPs and other resin-based materials.

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循环加热和傅立叶变换对CFRP的主动热成像检测——与闪光加热法的比较

利用循环加热和傅立叶变换获得的相位图像对碳纤维增强塑料(CFRP)试样进行了主动热成像无损检测，并将该方法的缺陷检测能力与传统的闪速加热热成像方法进行了比较。实验结果表明，当相位图像的频率与循环加热频率相等时，缺陷检测能力显著提高。与闪速加热相比，循环加热获得的相位图像信噪比更高，但加热过程中被测物体的温升低于闪速加热。这些结果表明，所提出的检测方法对cfrp和其他树脂基材料是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Composite Materials 工程技术-材料科学：复合

CiteScore

5.00

自引率

20.70%

发文量

审稿时长

3 months

期刊介绍： "Advanced Composite Materials (ACM), a bi-monthly publication of the Japan Society for Composite Materials and the Korean Society for Composite Materials, provides an international forum for researchers, manufacturers and designers who are working in the field of composite materials and their structures. Issues contain articles on all aspects of current scientific and technological progress in this interdisciplinary field. The topics of interest are physical, chemical, mechanical and other properties of advanced composites as well as their constituent materials; experimental and theoretical studies relating microscopic to macroscopic behavior; testing and evaluation with emphasis on environmental effects and reliability; novel techniques of fabricating various types of composites and of forming structural components utilizing these materials; design and analysis for specific applications. Advanced Composite Materials publishes refereed original research papers, review papers, technical papers and short notes as well as some translated papers originally published in the Journal of the Japan Society for Composite Materials. Issues also contain news items such as information on new materials and their processing."