지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.4
- 수록면
- 1,221 - 1,229 (9page)
- DOI
- https://doi.org/10.1016/j.net.2021.09.040
이용수
초록· 키워드
오류제보하기
In this work, the guided wave de-bonding area-detecting technique was studied for application tocontainment liner plates in nuclear power plant areas. To apply this technique, an appropriate Lambwave mode, symmetric and longitudinal dominance, was verified by the frequency shifting technique.
The S0 2.7 MHz mm Lamb wave mode was chosen to realize quantitative experimental results and theirvisualization. Results of the bulk wave, longitudinal wave mode, and comparison experiments indicatethat the wave mode was able to distinguish between the de-bonded and bonded areas. Similar to thebulk wave cases, the bonded region could be distinguished from the de-bonded region using the Lambwave approach. The Lamb wave technique results showed significant correlation to the de-bonding area.
As the de-bonding area increased, the Lamb wave energy attenuation effect decreased, which was aprominent factor in the realization of quantitative tomographic visualization. The feasibility of tomographic visualization was studied via the application of Lamb waves. The reconstruction algorithm for theprobabilistic inspection of damage (RAPID) technique was applied to the containment liner plate to verifyand visualize the de-bonding condition. The results obtained using the tomography image indicated thatthe Lamb wave-based RAPID algorithm was capable of delineating debonding areas.
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