1. Experimental and numerical investigation of the socket of lower limb prosthetic made from epoxy-silicon composite material.
- Author
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Al-Arkawazi, Ahmed R. K., Ameen, Sameer Hashim, and Al-Arkawazi, Rasool R. K.
- Subjects
- *
HIGH density polyethylene , *COMPOSITE materials , *GLASS fibers , *SAFETY factor in engineering , *EPOXY resins - Abstract
The comfortable and successful socket represents the core purpose of the current work for the lower limb prosthetic, which must be satisfied two items, stiffness and elasticity for duration and damping purposes, respectively. In the present work, demonstrated a novel composite material made mainly from silicon and epoxy, where is the silicon material for damping and epoxy for rigidity. Eight models for a different component of two materials under study are performed. Model 4 of 15% silicon and 85% epoxy is fulfillment the optimum strength and elasticity needed for a succeeding socket. The methodology of the present work is divided into two parts experimental and numerical results. The experimental results, including manufacturing the composite models and the compression test, are done for all models. The numerical results are determined by a virtual simulation of the socket using the AUTODESK INVENTOR PROGRAM. The numerical results proved that model 4 satisfied all requirements from stresses, deformations, strain, and factors of safety which are obtained for the present material and selected traditional materials that were used as socket material in past research. Model 4 provides a superior stiffness in comparison with polypropylene and high-density polyethylene reaching 456 % and 21.8 %, while the softening of the new composite material for the socket is approximately similar to the polypropylene but larger than stiff glass fiber reinforced plastic reached to 317 %. Finally, the major observations that can be demonstrated from the current work are proposing a lighter, stronger, more elastic, and safer socket. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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