NDLI: Mechanical and thermal buckling analysis of sandwich panels under different edge conditions

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Mechanical and thermal buckling analysis of sandwich panels under different edge conditions

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ko, William L.
Copyright Year	1993
Description	By using the Rayleigh-Ritz method of minimizing the total potential energy of a structural system, combined load (mechanical or thermal load) buckling equations are established for orthotropic rectangular sandwich panels supported under four different edge conditions. Two-dimensional buckling interaction curves and three dimensional buckling interaction surfaces are constructed for high-temperature honeycomb-core sandwich panels supported under four different edge conditions. The interaction surfaces provide easy comparison of the panel buckling strengths and the domains of symmetrical and antisymmetrical buckling associated with the different edge conditions. Thermal buckling curves of the sandwich panels also are presented. The thermal buckling conditions for the cases with and without thermal moments were found to be identical for the small deformation theory. In sandwich panels, the effect of transverse shear is quite large, and by neglecting the transverse shear effect, the buckling loads could be overpredicted considerably. Clamping of the edges could greatly increase buckling strength more in compression than in shear.
File Size	975443
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940019041
Archival Resource Key	ark:/13960/t51g5mg3c
Language	English
Publisher Date	1993-10-01
Access Restriction	Open
Subject Keyword	Composite Materials Potential Energy Honeycomb Cores Rectangular Panels Mathematical Models Thermal Buckling Rayleigh-ritz Method Thermal Analysis Clamps Sandwich Structures Edges Thermal Stresses Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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