Finite Element Analysis of 3D Printed Mechanical Prosthetic Finger

Analisis Elemen Terhingga Jari Prostetik Mekanikal Bercetak 3D

  • Neilson Peter Kolej Komuniti Tambunan Sabah
  • Johnny Yakin Politeknik Kota Kinabalu

Abstract

The development of finger prostheses through Fused Deposition Modelling, or 3D printing, has been widely applied as the cheapest and fastest alternative for prosthesis production. This method also enables the prostheses to be customized for specific users and functions. However, the main construction material of the prostheses through this method is ABS plastic, which is known for its limited strength and rigidity. Thus, it is important to figure out the 3D-printed prostheses' structural strength and critical points to prevent mechanical failure. This article focuses on the strength analysis of our proposed 3D-printed mechanical prosthetic ring finger design. The analysis simulation was carried out with the Finite Element Analysis method using Autodesk Inventor 2022 software, and ABS plastic was used as the material for the prosthetic construction. To mimic the finger grip strength, 20 N of force was exerted on the prosthetic frame perpendicular to the vertical and horizontal directions of the finger’s movement, and 1 Nm of torque was exerted along the X-axis for twisting simulation. Based on the simulation results, we have found that the proposed design was expected to fail at a lower loading limit compared with the average grip strength of an adult male. The failure was caused by the weakness of the material itself. Therefore, we suggest a stronger material, such as polycarbonate or polyamide, be used for the proposed design.

Published
2023-10-30
How to Cite
PETER, Neilson; YAKIN, Johnny. Finite Element Analysis of 3D Printed Mechanical Prosthetic Finger. Jurnal Sains Sosial dan Pendidikan Teknikal | Journal of Social Sciences and Technical Education (JoSSTEd), [S.l.], v. 4, n. 1, p. 198-206, oct. 2023. ISSN 2716-6740. Available at: <https://myjms.mohe.gov.my/index.php/jossted/article/view/24500>. Date accessed: 26 july 2024.

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