Page 232 - Mechanical Behavior of Materials

Problems and Questions 233

5.50 A composite material is needed that has unidirectional fiber or wire reinforcement embedded
in a metal matrix. The elastic modulus parallel to the reinforcement must be at least 170 GPa,
and the elastic modulus perpendicular to the reinforcement must be at least 85 GPa.
(a) If the matrix material is a magnesium alloy and the volume fraction of reinforcement
is 60%, what is the minimum elastic modulus required for the reinforcement material?
(b) Name two materials listed in Table 5.2 that might be reasonable candidates for the
reinforcement material.