Vibro-acoustic analysis of functionally graded graphene-reinforced nanocomposite laminated plates under thermal-mechanical loads. (1st May 2019)

• Record Type: Journal Article
• Authors: Xu, Zhichao; Huang, Qibai
• Is Part Of: Engineering structures. Volume 186(2019)
• Page Start: 345
• Page End: 355
• Publication Date: 2019-05-01
• Subjects: Vibro-acoustic characteristics -- FG graphene-reinforced nanocomposite -- Temperature-dependent -- Third-order shear deformation plate theory; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2019.01.137
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Vibro-acoustic analysis of FG-GRC plates under thermal-mechanical loads are studied. The distribution pattern of GPLs considers linear and nonlinear types. A coupling effect between temperature and the width to thickness ratio is found. Results provide references for vibration-noise reduction of FG-GRC plates. Abstract: This paper investigates the vibro-acoustic characteristics of functionally graded graphene-reinforced nanocomposite (FG-GRC) laminated plates under thermal-mechanical loads. It is assumed that the graphene nanoplatelets (GPLs) are distributed with random directions but homogeneous dispersion in each layer while the weight fraction of GPLs shows a layer-wise variation along the thickness direction. The material properties are assumed to be temperature-dependent and are estimated through Halpin-Tsai micromechanical model. The governing differential equations are derived based on Hamilton's principle and the third-order shear deformation plate theory (TSDT). The natural frequencies and vibration displacements of a simply supported FG-GRC plate are obtained by employing the Navier method. The acoustic radiation is calculated through Rayleigh integral method. Results show that the vibro-acoustic characteristics of FG-GRC plates are significantly influenced by the distribution pattern, weight fraction, temperature and geometric parameter of the plate. A coupling effect between temperature and the width to thickness ratio of a plate is found when analyzing the influence of temperature on vibro-acoustic characteristics of FG-GRC plates.