Question

A continuous and aligned fibrous reinforced composite having a cross-sectional area of 970 mm^2 (1.5 in^2) is subjected to an external tensile load. If the stresses sustained by the fiber and matrix phases are 215 MPa (31,300 psi) and 5.38 MPa (780 psi), respectively, the force sustained by the fiber phase is 76,800 N (17,265 lbf), and the total longitudinal composite strain is 1.56 Ã— 10^(-3), determine the following: (a) The force sustained by the matrix phase (b) The modulus of elasticity of the composite material in the longitudinal direction (c) The moduli of elasticity for fiber and matrix phases

          A continuous and aligned fibrous reinforced composite having a cross-sectional area of 970 mm^2 (1.5 in^2) is subjected to an external tensile load. If the stresses sustained by the fiber and matrix phases are 215 MPa (31,300 psi) and 5.38 MPa (780 psi), respectively, the force sustained by the fiber phase is 76,800 N (17,265 lbf), and the total longitudinal composite strain is 1.56 Ã— 10^(-3), determine the following:
(a) The force sustained by the matrix phase
(b) The modulus of elasticity of the composite material in the longitudinal direction
(c) The moduli of elasticity for fiber and matrix phases

Added by Cesar T.

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