Anzeige
Erschienen in:
2013 | OriginalPaper | Buchkapitel
Evaluation of Material Degradation of Composite Laminates Using Nonlinear Lamb Wave
verfasst von : W. Li, Y. Cho, T. Ju, H. S. Choi, N. Kim, I. Park
Erschienen in: Nondestructive Testing of Materials and Structures
Verlag: Springer Netherlands
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
This study introduces a new approach to evaluate material degradation caused by thermal fatigue in composite laminates by using nonlinear Lamb waves. The correlation between normalized nonlinear parameters and degradation states is studied. S1 Lamb mode which has phase and group matching features is chosen for the practical generation of nonlinear Lamb wave. The measured acoustics normalized nonlinearity is directly related to material degradation. It could be concluded that it is possible to use nonlinear Lamb waves to evaluate composite laminates degradation.