NDLI: Study of compression-loaded and impact-damaged structurally efficient graphite-thermoplastic trapezoidal-corrugation sandwich and semisandwich panels

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Study of compression-loaded and impact-damaged structurally efficient graphite-thermoplastic trapezoidal-corrugation sandwich and semisandwich panels

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jegley, Dawn C.
Copyright Year	1992
Description	The structural efficiency of compression-loaded trapezoidal-corrugation sandwich and semisandwich composite panels is studied to determine their weight savings potential. Sandwich panels with two identical face sheets and a trapezoidal corrugated core between them and semisandwich panels with a corrugation attached to a single skin are considered. An optimization code is used to find the minimum weight designs for critical compressive load levels ranging from 3000 to 24,000 lb/in. Graphite-thermoplastic panels based on the optimal minimum weight designs were fabricated and tested. A finite element analysis of several test specimens was also conducted. The results of the optimization study, the finite element analysis, and the experiments are presented. The results of testing impact damage panels are also discussed.
File Size	1963830
Page Count	30
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930002435
Archival Resource Key	ark:/13960/t03z35s4t
Language	English
Publisher Date	1992-11-01
Access Restriction	Open
Subject Keyword	Composite Materials Panels Compression Loads Skin Structural Member Corrugating Critical Loading Sandwich Structures Finite Element Method Fabrication Tolerances Mechanics Weight Reduction Graphite-epoxy Composites Composite Structures Impact Damage Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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