Effect of Fiber Volume Fraction on Mechanical Properties of Type E-Glass in Composite Materials

  • Zamzam A. ElsharifEmail author
  • Bashir M. Gallus
Part of the Advanced Structured Materials book series (STRUCTMAT, volume 113)


This chapter presents an experimental study about the effect of the fiber volume fraction on mechanical properties of E-glass types with polyester in composite laminate. This requires to carry out experimental studies to exanimate the fiber volume fraction, fiber weight, tensile test, hardness test, impact test. The prepared samples of woven roving at \(\left[ {0^{^\circ } /90^{^\circ } / \pm 45^{^\circ } } \right]_{\text{s}}\),\([ \pm 30^\circ / \pm 60^\circ ]_{s}\) and chopped mat. Experimental results have shown that hardness values increase with the volume fraction of the laminate. \(\left[ {0^{^\circ } /90^{^\circ } / \pm 45^{^\circ } } \right]_{\text{s}}\) revealed ideal behavior in contrast to \([ \pm 30^\circ / \pm 60^\circ ]_{s}\) and chopped mat materials. Fiber volume fraction results of \(\left[ {0^{^\circ } /90^{^\circ } / \pm 45^{^\circ } } \right]_{\text{s}}\), \([ \pm 30^\circ / \pm 60^\circ ]_{s}\) and chopped mat were found to be 44, 41 and 29% at hardness values of 93, 78, and 75, respectively. Toughness values of \(\left[ {0^\circ /90^\circ / \pm 45^\circ } \right]_{\text{s}}\), \([ \pm 30^\circ / \pm 60^\circ ]_{s}\), and chopped mat were obtained to be \(25.7\,{\text{J}},26.14\,{\text{J}},\) and \(25.5\,{\text{J}}\), respectively. In addition, yield stresses of \(\left[ {0^{^\circ } /90^{^\circ } / \pm 45^{^\circ } } \right]_{\text{s}}\), \([ \pm 30^\circ / \pm 60^\circ ]_{s}\), and chopped mat were obtained to be ideal plastic behavior, 52.5325, 17.3578 MPa, respectively.


E-glass fiber Lay-up Quasi-isotropic laminate Composite material Delamination Fiber breakage Fiber volume fraction 


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Authors and Affiliations

  1. 1.Mechanical EngineeringCollege of Technical Sciences MisrataMisrataLibya

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