Phase Continuity Evaluation via Modulus

Dual-phase continuity was assumed by Davies.The shear modulus for a Davies composite may be expressed 

Dickie examined the composite behavior of semi-I and semi-II 

et evaluated their polyurethane/poly(methyl methacryl- 

An especially interesting model that predicts dual-phase continuity is based on work by Budiansky. For two-phased systems, the Budiansky equation may be expressed 

The quantity represents Poisson s ratio for the composite having a shear modulus G, and Gi and G2 are the shear moduli of the component polymers having volume fractions vi and V2, respectively. 

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