Is it possible to produce a continuous and oriented aramid fiber–epoxy matrix composite having longitudinal and transverse moduli of elasticity of 35 GPa and 5.17 Gpa, respectively? Why or why not? Assume that the elastic modulus of the epoxy is 3.4 Gpa

State the critical difference in the processing behavior of thermoplastics vs. thermosets.

Give some examples of commercial products which are laminar composite structures.

Calculate the modulus of rigidity (shear modulus) of an epoxy resin if the modulus of elasticity (Young's modulus) E = 3.5 GPa and the Poisson's ratio = 0.35. Select one: a. G = 2.6 GPa b. G = 10 GPa c. G = 3.15 GPa d. G= 0.1 GPa e. G = 1.3 GPa

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Original question: The nominal engineering constants of a unidirectional graphite epoxy ply are given in Table below for a fiber volume fraction of 60 percent. The fiber volume is reduced to 55 percent. Estimate the engineering constants for this reduced fiber volume fraction. New question needing to be answered: Repeat with a reduced fiber volume fraction of 40 percent representative of lower fiber volume fraction materials. Table:

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Compute the ultimate strength for a composite which uses Aramid fibers and Polyester matrix.  The volume fraction of fibers is 45 % and matrix is 55 %.