Stress-Strain State Investigation and Ultimate Load on Femoral Implants Based on S-Type Ti6Al4V Titanium Alloy.

IF 5 3区医学 Q1 ENGINEERING, BIOMEDICAL

Journal of Functional Biomaterials Pub Date : 2025-05-19 DOI:10.3390/jfb16050187

Ivan Panfilov, Ilya Vilkovyskiy, Evgeniy Sadyrin, Sergei Aizikovich, Alexey N Beskopylny, Besarion Meskhi

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引用次数: 0

Abstract

Hip replacement is a widespread surgical procedure that eliminates pain and restores motor functions of the pathologically altered hip joint. The issue lies in the lack of pre-operative strength calculations for implant shapes. So, they tend to break after surgery or damage the bone due to the complex stress-strain state. In the present paper, we studied the stress-strain state and ultimate load of S-type canine femoral implants based on titanium alloy Ti6Al4V using finite element analysis for static and cyclic loads. X-ray computed micro tomography data were used to construct the models. Re-engineering and restoration of the 3D geometry of the product were conducted. Strength analysis was performed in the finite element analysis software package Ansys Mechanical was used for various types of implant support. Locations with stress concentrators were identified, and ultimate loads on the implant were obtained. The influence of the rigidity of the support on the prosthesis stem was also studied. For the case of rigid support, the stress-strain state of the prosthesis was studied and the ultimate load was found to be 30.1 kg.

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s型Ti6Al4V钛合金股骨植入物应力-应变状态及极限载荷研究。

髋关节置换术是一种广泛的外科手术，可以消除疼痛并恢复病理性改变的髋关节的运动功能。问题在于缺乏对植入物形状的术前强度计算。因此，由于复杂的应力-应变状态，它们容易在手术后断裂或损伤骨骼。本文采用静载荷和循环载荷的有限元分析方法，研究了Ti6Al4V钛合金s型犬股植入物的应力-应变状态和极限载荷。利用x射线计算机微层析成像数据构建模型。对产品的三维几何形状进行了重新设计和恢复。采用有限元分析软件包Ansys Mechanical对各类种植体支架进行强度分析。确定了应力集中器的位置，并获得了种植体的极限载荷。研究了支架刚度对假体柄的影响。在刚性支撑的情况下，研究了假体的应力-应变状态，得到了极限载荷为30.1 kg。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Functional Biomaterials Engineering-Biomedical Engineering

CiteScore

4.60

自引率

4.20%

发文量

226

审稿时长

11 weeks

期刊介绍： Journal of Functional Biomaterials (JFB, ISSN 2079-4983) is an international and interdisciplinary scientific journal that publishes regular research papers (articles), reviews and short communications about applications of materials for biomedical use. JFB covers subjects from chemistry, pharmacy, biology, physics over to engineering. The journal focuses on the preparation, performance and use of functional biomaterials in biomedical devices and their behaviour in physiological environments. Our aim is to encourage scientists to publish their results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Several topical special issues will be published. Scope: adhesion, adsorption, biocompatibility, biohybrid materials, bio-inert materials, biomaterials, biomedical devices, biomimetic materials, bone repair, cardiovascular devices, ceramics, composite materials, dental implants, dental materials, drug delivery systems, functional biopolymers, glasses, hyper branched polymers, molecularly imprinted polymers (MIPs), nanomedicine, nanoparticles, nanotechnology, natural materials, self-assembly smart materials, stimuli responsive materials, surface modification, tissue devices, tissue engineering, tissue-derived materials, urological devices.