PARAMETRIC STUDY ON BENDING ANALYSIS OF LAMINATED COMPOSITE AND SANDWICH PLATES USING SHEAR AND NORMAL DEFORMATION THEORY

Author(s): 

Aquib Javed and Najeeb Ur Rahman

Affiliation(s): 

Department of Mechanical Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh, U.P-202002, India

*Corresponding Author E-mail: aquibjaved10@gmail.com, najeebalig@rediffmail.com

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Bidirectional bending analysis and effect of various parameters on bending response of a laminated composite plate is presented in this work. Sinusoidal shear and normal deformation theory is used for laminate mechanics. The theory accounts for adequate distribution of the transverse shear strains through the plate thickness and satisfies traction free boundary conditions, thus a shear correction factor is not required. This theory is richer than other higher order theories as the trigonometric term in the displacement field on expansion contains the higher order terms. The governing equations have been developed using the principle of virtual work. The Navier solution is used for the simply supported square plate. Matlab codes have been developed to generate the analytical results to study the effect of various parameters on static response of laminated plates. Results are tabled and plotted which can be used for the study of the structures under loading conditions. Results are presented for sinusoidally distributed load.