For a C-fiber/PEEK composite calculate (a) the critical fiber volume fraction above which the reinforcing effect...

   

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For a C-fiber/PEEK composite calculate (a) the critical fiber volume fraction above which the reinforcing effect may be realized and (b) the critical fiber volume fraction at which the strengthening effect of the fiber may be observed? The ultimate tensile strength of PEEK is 62.0 MN/m2. The details of PEEK and C-fiber properties are given below; Tensile Strength (GN/m2) 0.058 Modulus Density (Kg/m³) 1300 Material (GN/m2) 3.8 PEEK C-fiber 1800 2.1 400 For a C-fiber/PEEK composite calculate (a) the critical fiber volume fraction above which the reinforcing effect may be realized and (b) the critical fiber volume fraction at which the strengthening effect of the fiber may be observed? The ultimate tensile strength of PEEK is 62.0 MN/m2. The details of PEEK and C-fiber properties are given below; Tensile Strength (GN/m2) 0.058 Modulus Density (Kg/m³) 1300 Material (GN/m2) 3.8 PEEK C-fiber 1800 2.1 400