Finite Element Modelling and Analysis of Trans-tibial Prosthetic Socket
The intention of this paper was to analyze prosthetic socket of distinct materials and for different geometry for optimum design solution by finite element analysis. A modified three-dimensional finite element model of the patellar tendonbearing (PTB) socket was developed in workbench of ANSYS 14.0 to find out the stress distribution and deformation pattern under functionally appropriate loading condition during normal gait cycle. All essential materials used in the analysis were assumed to be homogeneous, linearly elastic and isotropic. A variety of materials were used for the analysis of the socket like Polypropylene, Composite,90/10 PP/PE, HDPE and LDPE. Analysis was done on a various thickness of socket and of different length along with of different materials commonly applied in developing countries. For boundry condition, fixed support was applied to the distal end of the socket and vertical loads were applied under static condition at pattelar tendonbrim, medial tibia, lateral tibia and popliteal area during stance phase of gate cycle.
