A representative volume element (RVE) from a fiber-reinforced composite lamina is shown in Figure 2

A representative volume element (RVE) from a fiber-reinforced composite lamina is shown in Figure 2.6, along with the longitudinal stress and strain distributions across the fiber and matrix materials in the section. The fiber has a uniform longitudinal stress of 4000 psi (along the 1 direction) and a diameter of 0.0003 in., whereas the matrix has a uniform longitudinal stress of 1000 psi. A uniform longitudinal strain of 0.000423 in./in. acts over the entire section. The RVE has edge dimensions 0.0004 in. × 0.0004 in. in the 23 plane. Assume that the crosssectional dimensions of the section do not change along the longitudinal 4000 psi 0.00. U