Details
| Original language | English |
|---|---|
| Pages (from-to) | 542-556 |
| Number of pages | 15 |
| Journal | Frontiers of Structural and Civil Engineering |
| Volume | 13 |
| Issue number | 3 |
| Early online date | 31 Aug 2018 |
| Publication status | Published - Jun 2019 |
Abstract
The aim of current work is to improve the existing inverse methodology of void-detection based on a target impedance curve, leading to quick-prediction of the parameters of single circular void. In this work, mode-shape dependent shifting phenomenon of peaks of impedance curve with change in void location has been analyzed. A number of initial guesses followed by an iterative optimization algorithm based on univariate method has been used to solve the problem. In each iteration starting from each initial guess, the difference between the computationally obtained impedance curve and the target impedance curve has been reduced. This methodology has been extended to detect single circular metallic inclusion in 2D piezoelectric cantilever beam. A good accuracy level was observed for detection of flaw radius and flaw-location along beam-length, but not the precise location along beam-width.
Keywords
- curve shifting, flaw detection, impedance curve, inverse problem, mode shapes, piezoelectricity
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Architecture
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In: Frontiers of Structural and Civil Engineering, Vol. 13, No. 3, 06.2019, p. 542-556.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements
AU - Samanta, S.
AU - Nanthakumar, Srivilliputtur Subbiah
AU - Annabattula, R. K.
AU - Zhuang, Xiaoying
N1 - Funding Information: The authors are grateful for the financial support from NSFC (Grant No. 11772234) and DAAD (IIT sandwich master program).
PY - 2019/6
Y1 - 2019/6
N2 - The aim of current work is to improve the existing inverse methodology of void-detection based on a target impedance curve, leading to quick-prediction of the parameters of single circular void. In this work, mode-shape dependent shifting phenomenon of peaks of impedance curve with change in void location has been analyzed. A number of initial guesses followed by an iterative optimization algorithm based on univariate method has been used to solve the problem. In each iteration starting from each initial guess, the difference between the computationally obtained impedance curve and the target impedance curve has been reduced. This methodology has been extended to detect single circular metallic inclusion in 2D piezoelectric cantilever beam. A good accuracy level was observed for detection of flaw radius and flaw-location along beam-length, but not the precise location along beam-width.
AB - The aim of current work is to improve the existing inverse methodology of void-detection based on a target impedance curve, leading to quick-prediction of the parameters of single circular void. In this work, mode-shape dependent shifting phenomenon of peaks of impedance curve with change in void location has been analyzed. A number of initial guesses followed by an iterative optimization algorithm based on univariate method has been used to solve the problem. In each iteration starting from each initial guess, the difference between the computationally obtained impedance curve and the target impedance curve has been reduced. This methodology has been extended to detect single circular metallic inclusion in 2D piezoelectric cantilever beam. A good accuracy level was observed for detection of flaw radius and flaw-location along beam-length, but not the precise location along beam-width.
KW - curve shifting
KW - flaw detection
KW - impedance curve
KW - inverse problem
KW - mode shapes
KW - piezoelectricity
UR - http://www.scopus.com/inward/record.url?scp=85052811596&partnerID=8YFLogxK
U2 - 10.1007/s11709-018-0496-0
DO - 10.1007/s11709-018-0496-0
M3 - Article
AN - SCOPUS:85052811596
VL - 13
SP - 542
EP - 556
JO - Frontiers of Structural and Civil Engineering
JF - Frontiers of Structural and Civil Engineering
SN - 2095-2430
IS - 3
ER -