Elastic Instability of Rectangular Sandwich Panel of Orthotropic Core With Different Face Thicknesses and Materials

Autor:	C. C. Chang, I. K. Ebcioglu
Rok vydání:	1960
Předmět:	Core (optical fiber) Stress (mechanics) Materials science Buckling Elastic instability Mechanics of Materials Mechanical Engineering Sandwich panel Composite material Condensed Matter Physics Orthotropic material Compression (physics) Elastic modulus
Zdroj:	Journal of Applied Mechanics. 27:474-480
ISSN:	1528-9036 0021-8936
DOI:	10.1115/1.3644027
Popis:	This paper treats the instability of rectangular sandwich panels with nonisotropic cores and faces of different materials or thicknesses. The simply supported panel is loaded with a uniform edge compression. The solution is expressed in terms of a major buckling coefficient, given as the ratio of the critical lateral buckling load to the critical cylindrical buckling load, which is a function of several nondimensional parameters. A single family of curves shows the buckling behavior for all parameters. The effect of a moderate temperature differential between the two faces can be approximately considered by modifying their moduli of elasticity in accordance with their temperature levels. Besides the regular panel instability, a zone of core shear instability is determined and discussed in detail. Numerical examples are presented to illustrate the application of the analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3c98bf0e1573a1c9e0aff4931a9e3e3c https://doi.org/10.1115/1.3644027 Zobrazit plný text záznamu