Abstract
Delamination in composite structures plays a major role in lowering structural strength and stiffness, consequently downgrading system integrity and reliability. The aim of this study was to show that Lamb waves may be effectively generated using piezoelectric actuators embedded within a composite plate for use in health monitoring applications. A Lamb wave-based quantitative identification technique for delamination in VARTM (vacuum assisted resin transfer molding) composite structures was established. The propagation of Lamb waves in composite plates was evaluated using dynamic FEM analysis, then an experiment was carried out to verify the validity of the analytical study. The study assessed damage in the plates by fusing information from multiple sensing paths of the embedded network. To eliminate interference, a wavelet transform technique was applied to purify the acquired Lamb wave signals. The results showed that satisfactory detection of defects could be achieved with the proposed method.
| Original language | English |
|---|---|
| Pages (from-to) | 361-373 |
| Number of pages | 13 |
| Journal | Advanced Composite Materials |
| Volume | 20 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
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Quantitative accessibility of delamination in composite using lamb wave by experiments and FEA. / Kang, Kyoung Tak; Chun, Heoung Jae; Son, Joo Hyun; Lee, Jin Ah; Byun, Joon Hyung; Um, Moon Kwang; Lee, Sang Kwan; Jang, Ju Woong.
In: Advanced Composite Materials, Vol. 20, No. 4, 01.12.2011, p. 361-373.Research output: Contribution to journal › Article
TY - JOUR
T1 - Quantitative accessibility of delamination in composite using lamb wave by experiments and FEA
AU - Kang, Kyoung Tak
AU - Chun, Heoung Jae
AU - Son, Joo Hyun
AU - Lee, Jin Ah
AU - Byun, Joon Hyung
AU - Um, Moon Kwang
AU - Lee, Sang Kwan
AU - Jang, Ju Woong
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Delamination in composite structures plays a major role in lowering structural strength and stiffness, consequently downgrading system integrity and reliability. The aim of this study was to show that Lamb waves may be effectively generated using piezoelectric actuators embedded within a composite plate for use in health monitoring applications. A Lamb wave-based quantitative identification technique for delamination in VARTM (vacuum assisted resin transfer molding) composite structures was established. The propagation of Lamb waves in composite plates was evaluated using dynamic FEM analysis, then an experiment was carried out to verify the validity of the analytical study. The study assessed damage in the plates by fusing information from multiple sensing paths of the embedded network. To eliminate interference, a wavelet transform technique was applied to purify the acquired Lamb wave signals. The results showed that satisfactory detection of defects could be achieved with the proposed method.
AB - Delamination in composite structures plays a major role in lowering structural strength and stiffness, consequently downgrading system integrity and reliability. The aim of this study was to show that Lamb waves may be effectively generated using piezoelectric actuators embedded within a composite plate for use in health monitoring applications. A Lamb wave-based quantitative identification technique for delamination in VARTM (vacuum assisted resin transfer molding) composite structures was established. The propagation of Lamb waves in composite plates was evaluated using dynamic FEM analysis, then an experiment was carried out to verify the validity of the analytical study. The study assessed damage in the plates by fusing information from multiple sensing paths of the embedded network. To eliminate interference, a wavelet transform technique was applied to purify the acquired Lamb wave signals. The results showed that satisfactory detection of defects could be achieved with the proposed method.
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U2 - 10.1163/092430411X558503
DO - 10.1163/092430411X558503
M3 - Article
VL - 20
SP - 361
EP - 373
JO - Advanced Composite Materials
JF - Advanced Composite Materials
SN - 0924-3046
IS - 4
ER -