Abstract
Abstract
In this paper the finite element analysis was achieved on the Syme socket prosthesis to know the possibility of weight reduction of the socket. Previous works were restricted to stress analysis and socket-stump pressure distribution. In this work, the maximum stress induced in the socket model was found out at the maximum load carrying capacity that is developed at push-off stage of gait. The stress calculated is less than the yield and ultimate strength of the socket material, from which the optimum weight of the socket is obtained. The weight reduction of the socket is achieved by decreasing its thickness. At this point, the maximum stress is calculated again at the same loading condition as before reducing the weight. The maximum calculated stress is still less than the yield stress of the socket material. As a result, further weight reduction is achieved and hence the overall cost can be minimized by saving the expenditure on the material. Besides, the patients will feel comfort with light weight sockets.
Key Words: stress, Syme, socket, prosthesis, finite element, weight optimization.
