Monday 5 February 2018

TRANSIENT ANALYSIS OF PIEZOLAMINATED COMPOSITE PLATES USING HSDT

TRANSIENT ANALYSIS OF PIEZOLAMINATED COMPOSITE PLATES USING HSDT P. Ravikanth Raju1, J. Suresh Kumar2 1Anurag Group of Institutions, Venkatapur (V), Medchal. Dt, Telangana, India. 2JNTUH, Telangana, Hyderabad, India. ABSTRACT Piezoelectric materials have excellent sensing and actuating capabilities have made them the most practical smart materials to integrate with laminated structures. Integrated structure system can be called a smart structure because of its ability to perform self-diagnosis and quick adaption to environment changes. An analytical procedure has been developed in the work based on higher order shear deformation theory subjected to electromechanical loading for investigating transient characteristics of smart material plates. For analysis two displacement models are to be considered i.e., model-1 accounts for strain in thickness direction is zero whereas in model-2 in-plane displacements are expanded as cubic functions of the thickness coordinate. Navier’s technique has been adopted for obtaining solutions of anti-symmetric cross–ply and angle-ply laminates of both model-1 and model-2 with simply supported boundary conditions. For obtaining transient response of a laminated composite plate attached with piezoelectric layer Newmark’s method has been used. Effect of thickness coordinate of composite laminated plates attached with piezoelectric layer subjected to electromechanical loadings is studied. KEYWORDS: Anti-symmetric, electromechanical, piezoelectric layer, Navier’s technique, Newmark’s method, smart materials.

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