Journal of Computational Methods in Engineering

Journal of Computational Methods in Engineering

Buckling analysis of orthotropic rectangular plates with adhesive connection by generalized differential quadrature method

Document Type : Original Article

Authors
Hossein Nejatbakhsh
Ahmad Reza Ghasemi
Saeed Amir
Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
10.47176/jcme.43.2.1022
Abstract
Orthotropic plates used in composite structures are subject to local buckling, including compressive buckling. In the process of designing and building most large structures or instruments with complex geometry, joints in the structure are unavoidable. Today, adhesive joints are widely used in connecting composite structures due to some advantages over mechanical joints. In this article, the buckling phenomenon of orthotropic rectangular multilayer plates connected with glue has been investigated, and the force effects of the glue layer under buckling loading conditions have been studied. In order to obtain the critical buckling loads under different boundary conditions, the generalized differential quadrature method (GDQM) has been used. Buckling analysis is presented based on first-order shear deformation theory (FSDT) for carbon/epoxy, glass/epoxy and Kevlar/epoxy composite materials with different porcelain layers. The effect of thickness and type of the adhesive as a bonding layer has been investigated. In plates made of a type of porcelain layer, two-way carbon epoxy plates show higher buckling strength, and in general, the higher the ratio of length to width of the plates is, the higher the buckling strength will be. In the connections, the obtained results have been compared with the results from the finite element analysis in ABAQUS commercial software.
Keywords
Compressive buckling
Composite plates
Lap- joint
Adhesive joint
GDQM
Subjects
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