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合成材料:力学,计算和应用
ESCI SJR: 0.354 SNIP: 0.655 CiteScore™: 1.2

ISSN 打印: 2152-2057
ISSN 在线: 2152-2073

合成材料:力学,计算和应用

DOI: 10.1615/CompMechComputApplIntJ.2018027696
pages 69-91

SIMPLIFIED BUCKLING ANALYSIS OF STIFFENED LAMINATED SANDWICH PLATES

Husam Al Qablan
Civil Engineering Department, Hashemite University, Jordan
Hazim M. Dwairi
Civil Engineering Department, Hashemite University, Jordan
Omar Al Hattamleh
Civil Engineering Department, Hashemite University, Jordan
Samer Rabab'ah
Civil Engineering Department, Hashemite University, Jordan

ABSTRACT

Buckling analysis of laminated sandwich plates reinforced with miltiblade stiffeners is described in this work. An approximate, semianalytical model for such plates subjected to uniaxial and biaxial compression loading is derived, considering the interaction of sandwich plate, longitudinal and transverse stiffeners. The semianalytical method is based on the Rayleigh–Ritz formulation. The stiffeners were added at the upper and lower faceplates and modeled as a simple beam with flexural and torsional stiffness against out-of-plane bending. The faceplates are demonstrated as sheardeformable plates utilizing the first-order shear deformation plate theory. The core of the sandwich panel is considered as a three-dimensional body. Several methods for evaluating the shear correction factor were presented in this study. The results of the presented model were found to be in good agreement with fully nonlinear finite element analysis results and the results available from the literature. The presented model allows for a very efficient analysis in terms of computational time and required memory compared to a fully nonlinear finite element analysis model. Various applications have been depicted, with the aim of elucidating the capability and versatility of the exhibited approach.


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