Study the Impact behavior of the Prosthetic Lower Limb Lamination Materials Due to Low Velocity Impactor

摘要

This work involved three parts ,the first one is manufacturing different types of laminated below knee prosthetic socket materials with different classical laminated materials used in Baghdad center for prosthetic and orthotic (4perlon layers+2carbon fiber layer+4 perlon layers) ,and suggested two laminated materials(3perlon layers+2carbon fiber layer+3 perlon layers) and (3perlon layers+1carbon fiber layer+3 perlon layers) ) in order to choose the perfect laminated socket . While the second part is tested(Impact test) the laminated materials specimens used in socket manufacturing in order to get the impact properties for each socket materials groups using an experimental rig designed especially for this purpose. Also the interface pressure between the residual leg and prosthetic socket is measured covering all the surface area of the B-K prosthetic socket by using piezoelectric sensor in order to estimation the resulting stress according to loading conditions . A male with age, length, mass, and stump length of 42 years, 164 cm, 67 Kg and 13 cm respectively with a right transtibial amputation was chosen to achieve the above mentioned testing procedures. Finally the last part suggested a theoretical and analytical model for each group of specimens to find out the absorbed energy behavior and subjected maximum stress for each laminated B-K prosthetic socket materials.