Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Evaluation of the elastic properties of composite materials by the rule of mixtures and computer program
Submission Author:
Jullyane Figueiredo , PA
Co-Authors:
Ives Okabe, Geisiane Freitas Miranda, Moacir Kuwahara, Roberto Tetsuo Fujiyama, César Tadeu Nasser Medeiros Branco, Igor dos Santos Gomes, Douglas Santos Silva, Luciano Monteiro Almeida, Fábio de Sousa, Luiz Fernando Nazaré Marques, Jullyane Figueiredo
Presenter: Ives Okabe
doi://10.26678/ABCM.COBEM2017.COB17-2837
Abstract
From the elastic properties of the individual constituents of composite materials, it is possible to predict the final properties of the composite before its manufacture, through traditional formulations such as the rule of mixtures (ROM). This work deals with a comparison of the elastic properties of composite materials through classical equations and computational simulation. The classical equations are the direct and inverse rule of mixtures, the Halpin-Tsai semi-empirical model, and the computational simulation performed in ANSYS R17.2®. The elastic properties evaluated in this research are longitudinal and transverse modulus of elasticity and the Poisson ratio. The finite element analysis considered a representative volume element, with dimensions in the order of microns. Each constituent was modeled with the isotropic properties of the modulus of elasticity and Poisson ratio for the matrix of epoxy and fiberglass. The results of the simulation were consistent with the values from ROM, except for transverse module that presented high error unless for Halpin-Tsai model, exhibiting 6% of error.
Keywords
Element representative volume, Composite Materials, Fiberglass, epoxy
