Aging and damage assessment of composite structures using embedded piezoelectric sensors. Monnier, T., Jayet, Y., Guy, P., & Baboux, J. C. In AIP Conference Proceedings, volume 509, pages 1269–1276, May, 2000. ![Aging and damage assessment of composite structures using embedded piezoelectric sensors [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Ultrasonic waves are commonly used for the characterization and the nondestructive testing of structural materials. The need of a coupling fluid weakens the reproducibility of traditional contact techniques and thus limits the monitoring of in-service structures. Our approach consists in integrating into the structure a piezoelectric element, which is designed for both monitoring the homogeneous mechanical properties and detecting localized defects. At first, from the electrical impedance of the embedded piezoelectric disc and using an appropriate modelling, it will be shown that it is possible to determine the viscoelastic properties of the medium surrounding the sensor. Such a method has proved its efficiency for the in-situ and real time monitoring of the life cycle of polymeric matrix composites, from the various polymerization stages to hydrolytic aging mechanisms. In addition the same piezoelectric sensor generates Lamb waves, which can explore large samples because of their weak attenuation. This notably accelerates the integrity control in composite plate-like structures. In this paper, guided waves propagation will be theoretically studied and illustrated through numerical calculations. Then, experimental results will demonstrate the ability of Lamb waves to detect real damages in carbon fibers reinforced composite plates. © 2000 American Institute of Physics.
@inproceedings{monnier_aging_2000,
title = {Aging and damage assessment of composite structures using embedded piezoelectric sensors},
volume = {509},
url = {http://proceedings.aip.org/resource/2/apcpcs/509/1/1269_1},
doi = {doi:10.1063/1.1306186},
abstract = {Ultrasonic waves are commonly used for the characterization and the nondestructive testing of structural materials. The need of a coupling fluid weakens the reproducibility of traditional contact techniques and thus limits the monitoring of in-service structures. Our approach consists in integrating into the structure a piezoelectric element, which is designed for both monitoring the homogeneous mechanical properties and detecting localized defects. At first, from the electrical impedance of the embedded piezoelectric disc and using an appropriate modelling, it will be shown that it is possible to determine the viscoelastic properties of the medium surrounding the sensor. Such a method has proved its efficiency for the in-situ and real time monitoring of the life cycle of polymeric matrix composites, from the various polymerization stages to hydrolytic aging mechanisms. In addition the same piezoelectric sensor generates Lamb waves, which can explore large samples because of their weak attenuation. This notably accelerates the integrity control in composite plate-like structures. In this paper, guided waves propagation will be theoretically studied and illustrated through numerical calculations. Then, experimental results will demonstrate the ability of Lamb waves to detect real damages in carbon fibers reinforced composite plates. © 2000 American Institute of Physics.},
urldate = {2013-09-16TZ},
booktitle = {{AIP} {Conference} {Proceedings}},
author = {Monnier, T. and Jayet, Y. and Guy, P. and Baboux, J. C.},
month = may,
year = {2000},
pages = {1269--1276}
}
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