ABSTRACT
As noted in Chapter 7, a composite material composed of isotropic components distributed randomly in the material space will have isotropic effective properties, which are restricted by definite lower and upper bounds [1-13]. Regardless of the geometry of the inclusions (dispersed phase), the effective property of the composite lies somewhere in the interval between the lower and upper bounds. Such bounds depend only on the volume fractions of the components and the properties of the components.
