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<strong>Small delamination detection in carbon fibre reinforced polymer composite beam by NDT and vibration analysis</strong>

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Title Statement <strong>Small delamination detection in carbon fibre reinforced polymer composite beam by NDT and vibration analysis</strong>
 
Added Entry - Uncontrolled Name Nayak, Smaranika ; School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India
Pattnaik, Swetansu ; School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India
Panigrahi, Isham ; School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India
Nayak, Rameshkumar ; School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India
Parida, Sambitkumar ; School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India
 
Uncontrolled Index Term Carbon fibre, Delamination, Non-destructive testing (NDT), Vibration test
 
Summary, etc. Fibre reinforced polymer (FRP) composites have been prone to damages such as delamination, debonding, matrix cracking and fibre breakage. In this paper, detailed study has been carried out on determining the presence of small delamination in sub layers of carbon fibre composite beam using various non-destructive tests (NDT) and vibration signal analysis. We have concluded that ultrasonic and X-Ray Diffraction (XRD) tests have found to be more effective in detecting small delamination than X-Ray radiography and thermography tests. In the vibration test, we have observed that the natural frequency decreases and the rate of damping increases in delaminated carbon fibre composite beam as compared to composite beam without delamination. Besides, the fast fourier transform (FFT) results of vibration signal of delaminated beam have clearly shown higher harmonics and side bands. Finally, we have concluded that online vibration test can also be used effectively to detect presence of small delamination in FRP composites.
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2021-01-11 15:40:19
 
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http://op.niscair.res.in/index.php/IJEMS/article/view/45098
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 27, ##issue.no## 3 (2020): Indian Journal of Engineering and Materials Sciences
 
Language Note en
 
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