Numerical Simulation of the Biomechanical Behavior of the Impacted Foot on a Variable Density Insole

This research project shows the comparation between physical methods and numerical simulations to analyze mechanical behavior of an insole design for shock absorption. A three-dimensional model of the foot was created to analyze the mechanical behavior of a surface that simulated the insole. This procedure was completed by the means of digitalizing a computerized axial tomography in addition to 3D scanning techniques. The phenomenon was simulated with the help of the Ansys software in which mechanical properties of the real material were assigned and with workloads to which the device could be subjected. A comparison of the numerical results obtained from the simulation and the measurements was made with the help of a barometric pressure platform to determine that the device complies with an adequate pressure distribution in the plantar area. It could be concluded that the estimated results are conclusive because the tests carried out experimentally show reliable tendencies, because they coincide with the mechanical behavior, we found a value of 1420 kPa in the simulation performed in the FEA software compared to the pressure surface that yielded a value of 1410 kPa.