Static and Dynamic Analysis of Composite Laminated Plate
Junaid Kameran Ahmed1, V. C. Agarwal2, P. Pal3, Vikas Srivastav4
1Mr. Junaid Kameran Ahmed, Department of Civil Engineering, Sam Higginbottom Institute of Agriculture Technology & Sciences, Deemed University, Allahabad (U.P), India.
2Dr. V. C. Agarwal, Department of Civil Engineering, Sam Higginbottom Institute of Agriculture Technology & Sciences, Deemed University, Allahabad (U.P), India.
3Dr. P. Pal, Department of Civil Engineering, Motilal Nehru National Institute Technology Allahabad, Allahabad (U.P), India.
4Dr. Vikas Srivastav, Department of Civil Engineering, Sam Higginbottom Institute of Agriculture Technology & Sciences, Deemed University, Allahabad (U.P), India.
Manuscript received on 10 November 2013 | Revised Manuscript received on 18 November 2013 | Manuscript Published on 30 November 2013 | PP: 56-60 | Volume-3 Issue-6, November 2013 | Retrieval Number: F1347113613/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This work presents a static and dynamic analysis of Graphite /Epoxy composite plates. In the present work the behavior of laminated composite plates under transverse loading using an eight-node diso-parametric quadratic element based on First Order Shear Deformation Theory was studied, the element has six degrees of freedom at each node: translations in the nodal x, y, and z directions and rotations about the nodal x, y, and z axes . The static analysis includes the parametric studies on laminated plates to estimate the maximum deflection. The parametric study represented by variation in (aspect ratio, layer orientation, layer number, dimension of the plate and mesh size). The modeling of the plates was done by using ANSYS 12.0, and the results were compared with Finite Element Method code.The dynamic part of this study represented by evaluating the natural frequency of the plates. The boundary conditions considered in static and dynamic study, are simply supported and clamped boundary condition. In this study investigations were carried out on both square and rectangular composite laminated plates. The study start with isotropic plate of mild steel, and followed with orthotropic plate of Graphite/Epoxy composite .The results obtained from ANSYS program as well as Finite Element Method code, show a good agreement with the experimental results. The minimum deflection was found at an angle of 15 degree for clamped plate, and in case of simply supported plate the minimum deflection was found for angle 45 degree. It is also observed that the deflection for clamped boundary condition is less than in simply supported boundary condition for both isotropic and orthotropic plates. In isotropic plate the deflection in clamped plate is about 50% of simply supported. And for orthotropic plate the deflection for clamped is about (25 to 30)% of simply supported.
Keywords: Composite (Graphite/Epoxy) Laminated Plate, Rectangular And Square Plate, Isotropic Plate, Orthotropic Plate, Free Vibration (Natural Frequency).
Scope of the Article: Composite Materials