Composites Part B: Engineering, volume 247, pages 110360

In situ high-resolution ultrasonic visualization of damage evolution in the volume of quasi-isotropic CFRP laminates under tension

Publication typeJournal Article
Publication date2022-12-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor13.1
ISSN13598368
Ceramics and Composites
Mechanical Engineering
Industrial and Manufacturing Engineering
Mechanics of Materials
Abstract
The work is devoted to novel experimental equipment for in situ visualization of damage development in the volume of CFRP under tensile. The acoustic microscope with long-focus probe beam of high-frequency ultrasound (50–100 MHz) was combined with mechanical testing machine. The experimental equipment provides visualization in dynamics of the processes of appearance, growth and transformation of microstructural damages in the volume of the specimen under mechanical loading. The method was validated by 4- and 7-ply quasi-isotropic CFRP laminates with symmetrical round notches. We explore the possibilities of ultrasound imaging for detection of matrix crack opening, and the mechanism of delamination formation with various combination of fiber orientation. According to the ultrasound imaging of the volumetric microstructure, we depicted several mechanisms of damage appearance and evolution under tension. For calculating the level of local deformation in the region with round notches, we applied the digital image correlation (DIC) of ultrasonic scans obtained during the experiment. The DIC data provides more correct values of deformations occurring in the specimen zone with round notches. It was shown that the values in the central area differ significantly from the deformation calculation along the whole length of the specimen, especially under loads close to the critical ones.

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Morokov E. S., Titov S., LEVIN V. In situ high-resolution ultrasonic visualization of damage evolution in the volume of quasi-isotropic CFRP laminates under tension // Composites Part B: Engineering. 2022. Vol. 247. p. 110360.
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Morokov E. S., Titov S., LEVIN V. In situ high-resolution ultrasonic visualization of damage evolution in the volume of quasi-isotropic CFRP laminates under tension // Composites Part B: Engineering. 2022. Vol. 247. p. 110360.
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RIS Copy
TY - JOUR
DO - 10.1016/j.compositesb.2022.110360
UR - https://doi.org/10.1016%2Fj.compositesb.2022.110360
TI - In situ high-resolution ultrasonic visualization of damage evolution in the volume of quasi-isotropic CFRP laminates under tension
T2 - Composites Part B: Engineering
AU - Morokov, Egor S.
AU - Titov, S.A.
AU - LEVIN, VADIM
PY - 2022
DA - 2022/12/01 00:00:00
PB - Elsevier
SP - 110360
VL - 247
SN - 1359-8368
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Morokov,
author = {Egor S. Morokov and S.A. Titov and VADIM LEVIN},
title = {In situ high-resolution ultrasonic visualization of damage evolution in the volume of quasi-isotropic CFRP laminates under tension},
journal = {Composites Part B: Engineering},
year = {2022},
volume = {247},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016%2Fj.compositesb.2022.110360},
pages = {110360},
doi = {10.1016/j.compositesb.2022.110360}
}
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