3. (#5.17, Textbook) A tensile specimen of a unidirectional composite with a rectangular cross section of dimensions 12.5 mm x 4 mm has the fibers oriented at 45 deg to a longitudinal edge of the specimen. It is subjected to an axial force of 500N. 500 N 45 500 N (a) Calculate normal strains in the axial and perpendicular directions and shear strain on the specimen. Properties of the composite in the longitudinal and transverse directions are the same as those given in Exercise Problem 5.5. (b) Calculate off-axis modulus (Ex), the Poisson ratio (D), and cross-coupling coefficient (mx), of this specimen using the off-axis constitutive equation. Compare these values with the ones obtained in Exercise Problem 5.5 by direct transformation. Problem 5.5 (For reference only) 1. (#5.5, Textbook) Calculate Ex, GXV, UX, mx, and my with fiber orientation (0 =30, 45, 60) for an orthotropic lamina having the following properties: E_L = 14 GPa, E_T = 3.5 GPa, ULT = 0.4, G_LT = 4.2GPa