Computational Analysis of Different Designed Hip Joint Prostheses Using Finite Element Method

This work aims to compare stress analysis results of the previously produced UNDIP hip joint prosthesis with those of the other hip joint prosthesis from the different manufacturers using the computational finite element method (ANSYS Static Structural software). The computational analysis refers to ISO 7206–4 and ASTM F2996-13 to calculate the stress and safety factor from the products. The materials used in the simulation were Stainless Steel AISI 316L and Titanium Alloy Ti6Al4V. The 3 mm element size was selected for this simulation for all the product which was obtained from convergence analysis. The results showed that the highest safety factor was obtained from the A prosthesis, followed by UNDIP and the lowest is from V prosthesis. These results were also compared for the mass of the prosthesis showing that the lightest was obtained for the UNDIP prosthesis, followed by A and V prosthesis, respectively. For 316L material, the only safe hip joint prosthesis could be A product, which was the only prosthesis with safety factor more than 1. Conversely, for Ti6Al4V material, the UNDIP product might be the best hip prosthesis because of its lightweight with the acceptable safety factor.