THERMAL SCIENCE

International Scientific Journal

Qing-Ju Tang

,

Cui-Zhu Feng

,

Zhi-Bo Wang

,

Hao-Dong Li

DETECTION AND IDENTIFICATION OF DELAMINATION DEFECTS IN CFRP LAMINATES USING NON-LINEAR FREQUENCY-MODULATED INFRARED THERMAL WAVE TESTING TECHNOLOGY

ABSTRACT
In the process of preparation and service, the carbon fiber reinforced polymer (CFRP) material is prone to defects such as delamination and inclusions, which seriously impact the normal use. In this paper, non-linear frequency-modulated (the logarithmic sweep) thermal excitation is used to carry out finite element simulation and experimental research. In order to investigate how different detection process parameters affect defects, the impact of different detection parameters on the surface temperature difference and contrast is analyzed, and the detection parameters that can quickly identify defects and have better recognition effect are obtained.
KEYWORDS
CFRP laminates, NLFM, Detection parameters
PAPER SUBMITTED: 2023-06-10
PAPER REVISED: 2023-08-27
PAPER ACCEPTED: 2023-11-25
PUBLISHED ONLINE: 2024-02-18
DOI REFERENCE: https://doi.org/10.2298/TSCI230610035T
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 2, PAGES [1127 - 1133]
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PDF VERSION [DOWNLOAD]
Detection and identification of delamination defects in CFRP laminates using non-linear frequency-modulated infrared thermal wave testing technology

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence