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Author Mcgowan, David ♦ Mcgowan, David M. ♦ Ambur, Damodar R.
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Sandwich Fuselage Keel Panel ♦ Without Damage ♦ Visible Impact Damage ♦ Analytical Study ♦ Impact Energy ♦ Panel Contain ♦ Low-speed Impact Damage ♦ Impact-damage Condition ♦ Face Sheet ♦ Load Distribution ♦ Compression Response ♦ Dropped Ply ♦ Discrete-source Damage Condition ♦ Sandwich Fuselage ♦ Loaded Fuselage Keel Structure ♦ Failure Mechanism ♦ Undamaged Thick-face-sheet Composite Sandwich Structure ♦ Impact-damage Screening Study ♦ Honeycomb Core ♦ Fuselage Keel Panel ♦ Discrete-source Damage ♦ Graphite-epoxy Skin
Description Results are presented from an experimental and analytical study of a sandwich fuselage keel panel with and without damage. The fuselage keel panel is constructed of graphite-epoxy skins bonded to a honeycomb core, and is representative of a highly loaded fuselage keel structure. The face sheets of the panel contain several terminated or dropped plies along the length of the panel. The results presented provide a better understanding of the load distribution in damaged and undamaged thick-face-sheet composite sandwich structure with dropped plies and of the failure mechanisms of such structure in the presence of low-speed impact damage and discrete-source damage. The impact-damage condition studied corresponds to barely visible impact damage (BVID), and the discrete-source damage condition studied is a notch machined through both face sheets. Results are presented from an impact-damage screening study conducted on another panel of the same design to determine the impact energy necessary...
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 1997-01-01
Publisher Institution Presented at the Sixth NASA/DoD/ARPA Advanced Composites Technology Conference