Title Digital image correlation and ultrasonic Lamb waves for the detection and prediction of crack-type damage in fiber-reinforced polymer composite laminates /
Authors Jasiūnienė, Elena ; Vaitkūnas, Tomas ; Šeštokė, Justina ; Griškevičius, Paulius
DOI 10.3390/polym16141980
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Is Part of Polymers.. Basel : MDPI. 2024, vol. 16, iss. 14, art. no. 1980, p. 1-17.. ISSN 2073-4360
Keywords [eng] crack damage identification ; digital image correlation ; fiber reinforced polymer composite laminate ; finite element modeling ; finite element updating ; ultrasonic lamb waves
Abstract [eng] The possibility of using the Digital Image Correlation (DIC) technique, along with Lamb wave analysis, was investigated in this study for damage detection and characterization of polymer carbon fiber (CFRP) composites with the help of numerical modeling. The finite element model (FEM) of the composite specimen with artificial damage was developed in ANSYS and validated by the results of full-field DIC strain measurements. A quantitative analysis of the damage detection capabilities of DIC structure surface strain measurements in the context of different defect sizes, depths, and orientation angles relative to the loading direction was conducted. For Lamb wave analysis, a 2D spatial-temporal spectrum analysis and FEM using ABAQUS software were conducted to investigate the interaction of Lamb waves with the different defects. It was demonstrated that the FEM updating procedure could be used to characterize damage shape and size from the composite structure surface strain field from DIC. DIC defect detection capabilities for different loadings are demonstrated for the CFRP composite. For the identification of any composite defect, its characterization, and possible further monitoring, a methodology based on initial Lamb wave analysis followed by DIC testing is proposed.
Published Basel : MDPI
Type Journal article
Language English
Publication date 2024
CC license CC license description