The mechanical properties of composite F3K.S10 (composite of aluminum alloy matrix, reinforced by SiC particles) were determined in static compression tests conducted at a temperature of 293 K with different strain rates (10<sup>-4</sup>-10<sup>-2</sup>s<sup>-1</sup>). The graphs in the system true stress-true strain were observed two ranges of deformation. The first range corresponded to easy slipping, while the second one was due to start next slip systems. From several models describing the work hardening curves - in order to conduct a comparative analysis - used Ludwigson function allows for a precise description of the stress changes as a function of strain. It was found that the coefficients of the Ludwigsons equation on acceptable terms and conditions of the experiment depend on the strain rate, as well as the percentage, shape and spatial distribution of reinforcement particles. Structural analysis showed that the deformation is localized mainly in the matrix, while the reinforcing particles restrict the free movement of dislocations, which is reflected in the value of Young's modulus E.