D. Chaptre and . Dans-ce-chapitre, les traveux de recherche dans les deux domaines, l'étude de l'interaction des ultrasons avec des structures périodiques et la caractérisation du défaut cause par l'impact sur les plaques composites sont résumes. Le chapitre se termine par une suggestion d'éventuels travaux de recherche qui pouraient constituer une suite aux presents travaux, REFERENCES Citations in Chapter

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