UPPER AND LOWER BOUNDS OF EFFECTIVE MODULI FOR ELASTIC COMPOSITES WITH IMPERFECT INTERFACE AT FINITE STRAINS

Upper and lower bounds of effective bulk and shear moduli for a twophase elastic composite with imperfect interface are derived in the case of finite strains. In the case of very small strains, these derived bounds reduce known results for linear cases. Numerical results predict effects of the features of imperfect interface and the strains on these bounds of the effective moduli of such composites, and give reasonable results.