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Advances in Materials Science and Engineering
Volume 2013, Article ID 147693, 7 pages
Research Article

Modelling of Hybrid Materials and Interface Defects through Homogenization Approach for the Prediction of Effective Thermal Conductivity of FRP Composites Using Finite Element Method

1Department of Mechanical Engineering, V.R. Siddhartha Engineering College, Vijayawada 520 007, India
2Department of Mechanical Engineering, JNT University Anantapur, Anantapur 521 501, India

Received 30 May 2013; Accepted 12 September 2013

Academic Editor: Martha Guerrero

Copyright © 2013 C. Mahesh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Finite element method is effectively used to homogenize the thermal conductivity of FRP composites consisting of hybrid materials and fibre-matrix debonds at some of the fibres. The homogenized result at microlevel is used to determine the property of the layer using macromechanics principles; thereby, it is possible to minimize the computational efforts required to solve the problem as in state through only micromechanics approach. The working of the proposed procedure is verified for three different problems: (i) hybrid composite having two different fibres in alternate layers, (ii) fibre-matrix interface debond in alternate layers, and (iii) fibre-matrix interface debond at one fibre in a group of four fibres in one unit cell. It is observed that the results are in good agreement with those obtained through pure micro-mechanics approach.