Composite circular discs with polar orthotropic and rectangular orthotropic fibers of different composite materials are modeled and their vibration response due to harmonic point load was computed by finite element method (FEM) using ANSYS. Acoustic response of composite circular disc was computed by coupling the vibration data from FEM to the boundary element method using LMS SYSNOISE. © 2009 IMACS.

Raju Sethuraman

Department of Mechanical Engineering

Natrajan Ganesan

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Vibro-acoustic analysis of composite circular disc with various orthotropic properties

Journal of Computational Acoustics

Adding different reinforcements to the polymer composite is gaining more importance in the manufacturing industries because of their variation in mechanical properties. To satisfy modern industrial requirements, the mono-fiber polymer composites are substituted by hybrid composites in civil and automotive applications. The present work is to develop and investigate the hybrid composite behavior reinforced with AISI 304 (500 µm) wire mesh and jute fiber with epoxy LY556 resin. To analyze the mechanical properties of hybrid composites, two different orientations (45° and 90°) of wire mesh are selected and stacked with jute fiber by hand lay-up method. The wire mesh composite or hybrid composite is subjected to mechanical characterization like tensile, flexural, impact, and interlaminar. Subsequently, the viscoelastic behavior of the wire mesh composite is observed in terms of storage modulus (E′), loss modulus (E″), and damping factor (tan δ) by the dynamic mechanical analyzer (DMS 6100). The fractured surface microstructure of the wire mesh composite is analyzed by scanning electron microscope. The 45° oriented wire mesh composite sample shows better mechanical properties in ultimate tensile strength (20.55 MPa), flexural strength (0.145 kN), percentage of elongation (2.83%), and interlaminar strength (0.120 kN). At the transition region, the peak energy absorption of 0.622 is observed in the 90° oriented wire mesh composite sample at 0.5 Hz frequency. © The Author(s) 2019.

Journal of Industrial Textiles

Dynamic mechanical characteristics of jute fiber and 304 wire mesh reinforced epoxy composite

Journal of Sound and Vibration

Comparison of two analytical methods used to calculate sound radiation from radial vibration modes of a thick annular disk

Acoustic radiation from out-of-plane modes of an annular disk using thin and thick plate theories

NDT & E International

Mixed numerical–experimental identification of elastic properties of orthotropic metal plates

Engineering Analysis with Boundary Elements

Efficient acoustic calculations by the BEM and frequency interpolated transfer functions

SIX BOUNDARY ELEMENTS PER WAVELENGTH: IS THAT ENOUGH?

Journal	Journal of Computational Acoustics
ISSN	0218396X
Open Access	No