Static and vibration analysis of FG material plate and doubly curved singly ruled truncated cone

Abstract

The functionally graded materials (FGMs) are advanced composite material which newlinediffers from usual composites in the organization of their material constituents, giving newlinea smooth variation on their macroscopic structure in the desired direction. FGMs have newlinetaken major attention in various engineering applications and in manufacturing newlineindustries viz. civil engineering, aerospace, nuclear reactor, automobile, aircraft, space newlinevehicles, biomedical and steel industries. newlineNowadays, carbon nanotubes (CNTs) reinforced functionally graded materials have newlinegained significant importance from a technological point of view for the wide range of newlineengineering applications that involve high levels of performance and multifunctionality. The addition of CNT with functionally graded materials not only newlineprovides enriched mechanical, electrical and thermal properties but that may eliminate newlinethe interlaminar stresses which usually exist in the traditional laminated composites newlinedue to mismatch of elastic modulus. newlineIn the present work, two areas of work are explored. The first type of structure is FGM newlineplate and another type is FGM doubly curved singly ruled truncated cone with each newlinemade up of two different functionally graded material. Structures which is considered newlineare functionally graded (FG) plate and FG doubly curved singly ruled truncated cone, newlineboth made of metal-ceramic constituents of material and carbon nanotube reinforced newlinefunctionally graded material. newlineIn the present study, static and vibration responses of FG material plate/shell structures newlineare performed by developing an efficient displacement based 2D FE model. A third newlineorder shear deformation theory (TSDT) which accounts for the realistic parabolic newlinevariation of transverse shear deformation is employed in the present thesis work for newlinethis purpose. newlinePlates with cutouts are used to modify the weight of a structural member, ventilation newlinepurpose, achieving the appropriate connection of structural components and alteration newlineof the resonant frequency of a structure.