Experimental Study of Flexural Strength of Laminate Composite Material
Engineering and Technology Journal,
2007, Volume 25, Issue 0, Pages 454-466
AbstractThe effect of fiber volume fraction on the flexural properties of the
laminated composite test specimens constructed of two layers, one of them
reinforced with glass fiber and the other layer reinforced with Kevlar fiber
has been investigated experimentally.
The results illustrate that tension stress decreases with the increase in
fiber volume fraction of glass fiber of the lower layer while it increases with
the increase of Kevlar volume fraction of the upper layer. As for compression
stress, it increases with the increase in volume fraction of glass fiber of the
lower layer while it decreases with the increase of volume fraction of Kevlar
fiber of the upper layer.
The results also show the maximum value of tension stress (= 25.3
MPa.) at Vf of Glass fiber (= 15 %) and Vf of Kevlar fiber (= 60 %), while the
maximum value of compression stress (= -17.1 MPa.) at Vf of Glass fiber (= 60
%) and Vf of Kevlar fiber (= 15 %).
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