International Journal of Materials Sciences

  • Year: 2010
  • Volume: 5
  • Issue: 3

Mechanical Properties of Hybrid FRP Composite with Fiber-Matrix Interface Debond

  • Author:
  • K. Sivaji Babua, K. Mohana Raob, V. Rama Chandra Rajuc, V. Bala Krishna Murthyd, M.S.R. Niranjan Kumare
  • Total Page Count: 10
  • DOI:
  • Page Number: 319 to 328

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

bC. R. Reddy College of Engineering, Eluru, A.P., India.

cJ.N.T. University, Vizayanagaram, A.P., India.

dMechanical Engineering Department, P. V. P. Siddhartha Institute of Technology, Vijayawada, A.P, India.

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

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Abstract

Micro-mechanical prediction of mechanical properties of graphite-boronhybrid 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 models. The finite element models are validated by comparing the longitudinal and transverse moduli of the composite with perfectly bonded, and the transverse moduli of composite with totally debonded interface with the results available in the literature and found close agreement. Later these finite element models are extended to predict the mechanical properties E1, v12, v13, E2, v21, v23, E3, v31, v32 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 the mechanical properties is discussed.

Keywords

Debond, Hybrid FRP, Micromechanics, Unit Cell