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 most conventional materials. MMCs offer high specific strength, rigidity and wear resistance, much higher than 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 are being considered for use in, various applications within the aerospace and automotive industries [1]. Ceramic materials such as silicon carbide (SiC) are widely used in high-temperature structural applications and as reinforcement in composite materials to improve mechanical properties such as stiffness and wear resistance. The types of reinforcement in MMC are generally in the form of continuous fibers. , staple fibers (or whiskers), particles (or platelets). Among the most commonly used reinforcements, continuous fiber reinforcements are popular because the modulus and strength of the fibers are fully transferred to the composite. They offer mechanical and physical properties superior to those of 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 and distribute the load between the fibers. The behavior of the fiber/matrix interphase critically influences the thermomechanical and mechanical behavior of the reinforced fibers...... middle of paper ......ix Composites (MMC) were simulated. Normal stress profiles along 00 and 450 on the interface in the radial direction of the fiber were obtained. It was observed from the results that the stress transfer from the matrix to the fiber under a particular tensile load varies depending on the volume content of the reinforcement. In the first case, stress transfer increases monotonically with increasing fiber volume fraction, as unbonding 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 different volume fractions of SiC fiber and it was found to be maximum at 30% volume fraction of the fiber. The shear stress was observed to be maximum at the end of the fiber..