Abstract

Humerus bone is the longest bone of human hand that connects the shoulder to elbow. The 3D modelling of humerus bone consists of cylindrical shaft and two cups varying in size. Upper portion of cylindrical shaft fits into a socket in shoulder and lower portion connected to elbow. The size of shoulder cup and elbow cup varies in radious as variation of human geographical conditions. The main objective of this research work is to study the variation of human humerus bone cup size and find the biodynamic response in terms of modal frequency (Hz) and mode shapes. Four cases of cup radious variation were simulated using FEA. Modal frequency was used for evaluation of resonance condition and mode shapes were used to locate the fracture in bone. FEA (Finite Element Analysis) were used to simulate the boundary conditions and evaluate the results. For case I (R1= 29.32 mm, R2= 28.99 mm), first ten natural frequency varies (660.24-5932.3) Hz. For all four cases the natural frequency varies (660.24-5969.5) Hz. The fundamental frequencies varies (660.24, 670.65, 664.65 and 676.92) Hz. The results of FEA simulation were compared with experimental results available in literature. For the design of humerus bone model Solid Edge was used.

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