1. INTRODUCTIONMany innovations in the aerospace and transportation industries depend on high-performance structural materials. Metal matrix composites (MMCs) have received considerable attention due to their superior physical, mechanical, and thermomechanical properties compared to those of most conventional materials. MMCs offer high specific strength, stiffness and wear resistance, which is much higher than that of monolithic materials. They are also able to survive in higher temperature environments. High-performance metal matrix composites such as 6061 Al/SiC are now used, or considered for use, in a variety of applications in the aerospace and automotive industries [1]. Ceramic material such as silicon carbide (SiC) is widely used in high-temperature structural applications and used as composite material reinforcement to improve mechanical properties such as stiffness and wear resistance. The types of reinforcement in MMCs are generally in the form of continuous fibers, discontinuous fibers (or Whiskers), particulates (or platelets). Among the most commonly used reinforcements, continuous fiber reinforcements are popular because the modulus and strength of the fibers are completely transferred to the composite. They offer superior mechanical and physical properties compared to discontinuously reinforced MMCs. Continuous fiber reinforced MMCs are anisotropic and their degree of anisotropy mainly depends on the degree of fiber orientation [2,3]. In fiber-reinforced composites, loads are carried by the fibers and matrix transfer distributes the load between the fibers. The behavior of the fiber/matrix interphase critically influences the thermo-mechanical and mechanical behavior of the fiber reinforcements… middle of the paper… Six composites (MMC) were simulated. Normal stress profiles along 00 and 450 were obtained at the interface in the radial direction of the fiber. From the results it was observed that the stress transfer from the matrix to the fiber at a particular tensile load varies with the volume content of the reinforcement. In the former, stress transfer increases monotonically with increasing fiber volume fraction, as debonding progresses at fiber/matrix interfaces, stress transfer decreases. The maximum transferred stress was observed for the 30% volume fraction of the fiber, implying higher efficiency of the fiber at a particular volume fraction. The interfacial shear stress distribution was also simulated for various volume fractions of SiC fiber and found to be maximum at 30% of the fiber volume fraction. It was observed that the shear stress is maximum at the fiber tip.