MANUFACTURING AND ANALYSIS OF PROSTHETIC FOOT USING COMPOSITE MATERIAL
DOI:
https://doi.org/10.11113/jurnalteknologi.v88.24886Abstract
The development of prosthetic feet is crucial for amputee limbs, as they support the amputee's body and directly contact the ground, enhancing their characteristics and satisfaction. In this project a prosthetic foot is manufactured from composite material. The foot consists of two parts (Keel and Heel) the first part (Keel) made by using 11 layers of carbon fibers (addition 5 layers in adapter place), 2 layers of fiber glass and 2 layers of Kevlar fiber with lamination resin. The second part (Heel) made using 11 layers of carbon fibers 2 layers of fiber glass and 2 layers of Kevlar glass with polyester resin. Also, the forefoot of Keel has been set to 15 degrees of dorsiflexion. The artificial foot has been tested on three cases with different level of amputation. The foot has been analyzed by using ANSYS14.5 software to compute the total deformation, equivalent stresses and factor of safety. The analysis was depending on the weight of the patients. At the end, from the calculations of the equivalent stresses, and according to the Von-Mises theory, it has appeared that the foot is safe. The results of tensile test for group A σy(138.057 MPa), σult(174.200 MPa) and E (2.384133 GPa), while, for the group B σy(102.486 MPa), σult(146.257MPa) and E (5.616485GPa).
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