International Journal of Mechanics and Solids
  • Year: 2008
  • Volume: 3
  • Issue: 2

Prediction of Coefficients of Thermal Expansion of Hybrid FRP Composite with Fiber-Matrix Interface Debond

  • Author:
  • K. Sivaji Babu1, K. Mohana Rao2, V. Rama Chandra Raju3, V. Bala Krishna Murthy4, M.S.R. Niranjan Kumar5
  • Total Page Count: 10
  • Page Number: 137 to 146

1Mechanical Engineering Department, V.R. Siddhartha Engineering College, Vijayawada, A.P., India.

2Mechanical Engineering Department, K. L. College of Engineering, Vaddeswaram, A.P., India.

3J.N.T. University, Vizayanagaram, A.P., India.

4Mech. Engg. Department, P. V. P. Siddhartha Institute of Technology, Vijayawada, A.P., India.

5Production Engineering Department, V.R. Siddhartha Engineering College, Vijayawada, A.P., India.

Abstract

Prediction of coefficients of thermal expansion of graphite-boron-hybrid fiber and epoxy matrix composite lamina with fiber-matrix interface debond is carried out in the present analysis. Square unit cell is adopted for developing three dimensional finite element model. The finite element model is validated by comparing the numerical results with the existing literature and found close agreement. Later the finite element model is extended to predict the coefficients of thermal expansion of graphite-boron fiber-epoxy matrix hybrid composite with partial debond at the fiber-matrix interfaces for 60% fiber volume fraction (Vf). The finite element software ANSYS 11.0 has been successfully executed to evaluate the properties. The effect of debond on these properties is discussed.

Keywords

Debond, hybrid FRP, Micromechanics, Unit Cell