1. Explain briefly how the volume of fiber, fiber orientation, and fiber strength and modulus affect the properties of fiber-reinforced composites.
2. Five kg of continuous boron fibers are introduced in a unidirectional orientation into 8 kg of an aluminum matrix. Calculate
(a) the density of the composite,
(b) the modulus of elasticity parallel to the fibers, and
(c) the modulus of elasticity perpendicular to the fibers.