Abstract
Using the displacement potential approach of orthotropic composite materials for the plane stress conditions, an orthotropic panel subjected to a combined loading at its right lateral edge is solved. Effects of fiber orientations and material isotropy on the elastic field of an orthotropic panel subjected to a combined loading are discussed. The analytical elastic solutions at different sections of the panel with fiber orientationθ=90° are compared with those of finite element predictions to ensure the reliability of our present solutions.
Highlights
In lightweight structures, the use of orthotropic composite material is increasing due to its higher strength weight ratio compared to its corresponding isotropic material
Effect of fiber orientation and material isotropy on the exact elastic field is necessary for designing purpose because strength, toughness, and all other mechanical properties of any orthotropic composite depend on its fiber orientation
The present study presents the effects of fiber orientation and material isotropy on the elastic field of an orthotropic composite panel subjected to a combined loading at its tip
Summary
The use of orthotropic composite material is increasing due to its higher strength weight ratio compared to its corresponding isotropic material. The mathematical formulation of the actual physical problem of the laminated composite plate subjected to mechanical loading is presented utilizing higher order shear deformation theory and von-Karman nonlinear kinematics [10] These nonlinear governing differential equations of equilibrium are linearized using quadratic extrapolation technique [22]. The present study presents the effects of fiber orientation and material isotropy on the elastic field of an orthotropic composite panel subjected to a combined loading at its tip. This analysis is carried out analytically using Fourier integral and the displacement potential formulation of orthotropic composite materials. The soundness and reliability of the present solution are shown comparing the present analytical solution at some particular sections with those of finite element predictions
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