TY - GEN
T1 - Guided Wave Propagation and Breathing-Debond Localization in a Composite Structure
AU - Sikdar, Shirsendu
AU - van Paepegem, Wim
AU - Kersemans, Mathias
N1 - Funding Information:
Acknowledgement. This research work was supported by the Research Foundation-Flanders (FWO) Belgium under grant agreement no. FWO.3E0.2019.0102.01.
Publisher Copyright:
© 2021, Springer Nature Switzerland AG.
PY - 2021/1/11
Y1 - 2021/1/11
N2 - Carbon-fibre reinforced composite laminates are extensively used in aerospace, automotive, wind energy and marine engineering structures due to their light-weight advantage, high-energy absorption capability, fire resistance, high stiffness-to-weight ratios and construction flexibilities. This work is mainly focused on the analysis of nonlinear ultrasonic guided wave propagation and breathing-debond source localisation in a stiffened composite structure. In the process, the finite element method based 3D numerical simulations has been carried out on a stiffened composite structure using a preassigned network of piezoelectric transducers (PZT). From the analysis of the results, it is observed that the presence of plate-stiffener breathing-type debonds produces higher-harmonics in the registered PZT signals. Based on the identified differential parameters in the higher-harmonics, the breathing-debond source locations are effectively identified by using a fast and efficient baseline-free SHM strategy that uses Fast-Fourier-Transform of the registered sensor signals from the target structure to detect single as well as multiple breathing-debond locations in the stiffened composite structure.
AB - Carbon-fibre reinforced composite laminates are extensively used in aerospace, automotive, wind energy and marine engineering structures due to their light-weight advantage, high-energy absorption capability, fire resistance, high stiffness-to-weight ratios and construction flexibilities. This work is mainly focused on the analysis of nonlinear ultrasonic guided wave propagation and breathing-debond source localisation in a stiffened composite structure. In the process, the finite element method based 3D numerical simulations has been carried out on a stiffened composite structure using a preassigned network of piezoelectric transducers (PZT). From the analysis of the results, it is observed that the presence of plate-stiffener breathing-type debonds produces higher-harmonics in the registered PZT signals. Based on the identified differential parameters in the higher-harmonics, the breathing-debond source locations are effectively identified by using a fast and efficient baseline-free SHM strategy that uses Fast-Fourier-Transform of the registered sensor signals from the target structure to detect single as well as multiple breathing-debond locations in the stiffened composite structure.
KW - Debond
KW - Geometric nonlinearity
KW - Guided wave
KW - Piezoelectric transducer
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85101223587&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-64594-6_38
DO - 10.1007/978-3-030-64594-6_38
M3 - Conference contribution
AN - SCOPUS:85101223587
SN - 9783030645939
T3 - European Workshop on Structural Health Monitoring - Special Collection of 2020 Papers - Volume 1
SP - 378
EP - 386
BT - European Workshop on Structural Health Monitoring - Special Collection of 2020 Papers - Volume 1
A2 - Rizzo, Piervincenzo
A2 - Milazzo, Alberto
PB - Springer
T2 - European Workshop on Structural Health Monitoring
Y2 - 6 July 2020 through 9 July 2020
ER -