“…An understanding of the particulate composite failure mechanism is needed both for material characterization, and as a basis for design (Oh and Finnie, 1970;Mori and Tanaka, 1973;Christensen, 1979;Marshall and Evans, 1985;Moshev and Evlampieva, 1997;Wong and Ait-Kadi, 1997a,b;Jones, 1999;Basaran and Jiang, 2002). Many researchers including Achenbach and Zhu (1989), Ju and Chen (1994), Kwon et al (1997, Oshmyan and Muravin (1997), Wong and Ait-Miyano (1997a,b), , Miyano et al (1999), Ju and Sun (2001), Nie and Basaran (2005a), and others have attempted to describe the various damage mechanisms in composites macromechanically or micromechanically. These studies suggested that filler particles play an important role in the mechanical properties of the composite.…”