Linear Analysis of Composite Laminated Plates Using First Order Shear Deformable Theory Osama Mohammed Elmardi Suleiman Khayal Department of Mechanical Engineering, Faculty of Engineering and Technology, Nile Valley University, Atbara - Sudan


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Linear Analysis of Composite Laminated Plates Using First Order Shear Deformable Theory

Osama Mohammed Elmardi Suleiman Khayal
Department of Mechanical Engineering,
Faculty of Engineering and Technology,
Nile Valley University, Atbara - Sudan

Dynamic Relaxation (DR) method is presented for the analysis of
geometrically linear laterally loaded, rectangular laminated plates. The
analysis uses the Mindlin plate theory which accounts for transverse shear
deformations. A computer program has been compiled. The convergence
and accuracy of the DR solutions of isotropic, orthotropic, and laminated
plates for elastic small deflection response are established by comparison
with different exact and approximate solutions. The present Dynamic
Relaxation (DR) method shows a good agreement with other analytical and
numerical methods used in the verification scheme.

It was found that: The convergence and accuracy of the DR solution is
dependent on several factors which include boundary conditions, mesh size
and type, fictitious densities, damping coefficients, time increment and
applied load. Also, the DR small deflection program using uniform meshes
can be employed in the analysis of different thicknesses for isotropic,
orthotropic or laminated plates under uniform loads in a fairly good
accuracy.

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