This study uses molecular dynamics simulations to model the deformation behavior of tungsten fiber reinforced copper matrix nanowires. Tungsten fibers are packed into ceramic tubes and infiltrated with copper through liquid phase infiltration. The simulation models tungsten and copper atoms and applies strains of up to 150% to analyze the stress-strain behavior. Reinforcing copper with tungsten fibers increases the yield strength to around 4.5 GPa and delays necking. Visual Molecular Dynamics snapshots show the tungsten fibers restricting deformation of the copper matrix. The results are verified by comparison to experimental data.