Effective properties of composites with fiber-end cracks

The use of self-consistent finite element method (SCFEM) was described to predict effective properties of fiber composite with partially debonded interface. The procedure of SCFEM was described briefly. The effective longitudinal Young's modulus and shear modulus for unidirectional fiber reinforced composites with fiber-end cracks were calculated. Numerical results show that the effective properties are considerably influenced by the fiber-end cracks. The effects of microstructural parameters, such as fiber volume fraction, modulus ratio of the constituents and fiber aspect, on the effective properties of the composites were discussed.