NDLI: Combined compressive and shear buckling analysis of hypersonic aircraft structural sandwich panels

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Combined compressive and shear buckling analysis of hypersonic aircraft structural sandwich panels

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ko, William L. Jackson, Raymond H.
Copyright Year	1991
Description	The combined-load (compression and shear) buckling equations were established for orthotropic sandwich panels by using the Rayleigh-Ritz method to minimize the panel total potential energy. The resulting combined-load buckling equations were used to generate buckling interaction curves for super-plastically-formed/diffusion-bonded titanium truss-core sandwich panels and titanium honeycomb-core sandwich panels having the same specific weight. The relative combined-load buckling strengths of these two types of sandwich panels are compared with consideration of their sandwich orientations. For square and nearly square panels of both types, the combined load always induces symmetric buckling. As the panel aspect ratios increase, antisymmetric buckling will show up when the loading is shear-dominated combined loading. The square panel (either type) has the highest combined buckling strength, but the combined load buckling strength drops sharply as the panel aspect ratio increases. For square panels, the truss-core sandwich panel has higher compression-dominated combined load buckling strength. However, for shear dominated loading, the square honeycomb-core sandwich panel has higher shear-dominated combined load buckling strength.
File Size	1346093
Page Count	42
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910016108
Archival Resource Key	ark:/13960/t2b905n80
Language	English
Publisher Date	1991-05-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Panels Honeycomb Cores Twisting Shear Strength Compressive Strength Rayleigh-ritz Method Aspect Ratio Orthotropic Plates Sandwich Structures Flexing Hypersonic Vehicles Titanium Alloys Shear Stress Stiffness Buckling Aircraft Structures Trusses Structural Analysis Combined Stress 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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