Mechanical characterization of aerospace sandwich panels by speckle interferometry

M.A. Caponero, M. Ivagnes, U. Lecci, A. Paolozzi, F. Santoli

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Mechanical characteristics of composite structures are influenced not only by the geometrical and physical properties of the materials used but also by the many parameters characterizing the manufacturing processes such as temperatures and pressures in the polymerization cycle. Typical sandwich structures with carbon fiber reinforced plastics skins for aerospace applications have been manufactured with different process parameters in order to verify the induced changes in the modal parameters. Frequencies mode shapes and modal damping have been retrieved by using both Frequency Response Functions and Electronic Speckle Pattern Interferometry. Specimens have been tested in the free configuration by supporting the composite sandwich panels on soft material.
Original languageEnglish
Pages (from-to)1311 - 1317
Number of pages7
JournalProceedings of the International Modal Analysis Conference - IMAC
Publication statusPublished - 2001
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Engineering(all)

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