Authors

Riondityo Soni Bagastomo

Department of Mechanical Engineering, Diponegoro University, Jl. Prof. Soedarto, No.13, Tembalang, Semarang, 50275, Central Java, Indonesia & Department of Application Engineering, PT Arisma Data Setia, Jl. Graha Anggrek Mas No. A18, Pagerwojo, Sidoarjo,

Rifky Ismail

Department of Mechanical Engineering, Diponegoro University, Jl. Prof. Soedarto, No.13, Tembalang, Semarang, 50275, Central Java, Indonesia & Center for Biomechanics, Biomaterial, Biomechatronics, and Biosignal Processing (CBIOM3S), Diponegoro University,

Ismoyo Haryanto

Department of Mechanical Engineering, Diponegoro University, Jl. Prof. Soedarto, No.13, Tembalang, Semarang, 50275, Central Java, Indonesia

Abstract

Fibula fractures are common injuries often treated through internal fixation; however, post-operative mechanical failure of implants remains a significant clinical challenge. This study aims to analyze the causes of implant failure in a clinical case and optimize the design thickness using Finite Element Analysis (FEA). The study simulates a one-third tubular plate made of Stainless Steel 316L with thickness variations of 2 mm, 2.5 mm, and 3 mm using a four-point bending test scheme. Simulation results indicate that the standard 2 mm implant has critical structural limitations with a maximum load capacity of only 181.23 N, validating the cause of failure due to excessive functional loads. Conversely, thickness modification proved to significantly enhance mechanical performance: the 2.5 mm model increased load capacity by 50.1%, while the 3 mm model recorded a superior increase of 118.2% with a load capacity of up to 395.52 N. It is concluded that the 3 mm thickness variation is the optimal design, offering the best safety factor and stiffness to ensure fixation stability and prevent recurrent failure.

Keywords

Finite element analysis Biomechanics One-third tubular plate Bending test Fibula fracture

Citation of this Article

Riondityo Soni Bagastomo, Rifky Ismail, Ismoyo Haryanto. (2025). Failure Analysis and Design Optimization of One-Third Tubular Plate Using Finite Element Analysis. International Current Journal of Engineering and Science (ICJES), 4(12), 1-6. Article DOI: https://doi.org/10.47001/ICJES/2025.412001

Licence Copyright (c) 2026 International Current Journal of Engineering and Science. This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International Licence.

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