The results of a plane strain compression test (PSCT) were estimated by mean of the finite element method (FEM) and data of stress flow experimentally obtained from a tension test. The geometric model employed in ABAQUS TM was validated by comparing load-thickness reduction computational curves to experimental ones. Three different aluminum alloys were studied: 3003, 8011 and 6063. The two-dimensional FEM model is validated using a variable specimen width and a constant average friction coefficient, both in simulation as in the stress-strain material curves calculation. The computational results showed a 4-6% overestimation in terms of load at the beginning of plastic strain and a 2-3 % underestimation and the end of the PSCT. Moreover, the lower the spreading coefficient selected (parameter that takes