Design of Titanium Alloy Femoral Stem Cellular Structure for Stress Shielding and Stem Stability: Computational Analysis
Author | Zoubi, Naser Fawzi Al |
Author | Tarlochan, Faris |
Author | Mehboob, Hassan |
Author | Jarrar, Firas |
Available date | 2022-05-16T08:00:53Z |
Publication Date | 2022-02-01 |
Publication Name | Applied Sciences (Switzerland) |
Identifier | http://dx.doi.org/10.3390/app12031548 |
Citation | Al Zoubi, N.F.; Tarlochan, F.; Mehboob, H.; Jarrar, F. Design of Titanium Alloy Femoral Stem Cellular Structure for Stress Shielding and Stem Stability: Computational Analysis. Appl. Sci. 2022, 12, 1548. https://doi.org/10.3390/app12031548 |
Abstract | The main objective of this study is to design titanium alloy femoral stems with cubic porous structures that will be able to reduce stress shielding and promote stem stability. These porous structure designs were introduced into titanium alloy femoral stems as homogeneous and functionally graded porous structures. First, the cubic cellular structures were simulated under compressive loading to measure the yield and modulus of elasticity for various porosity ranges. Based on the selected porosity range, fifteen different arrangements of radial geometrical functionally graded (FG) designs were developed with average porosities of 30, 50, and 70% respectively. Finite element models were developed with physiological loads presenting three different walking speeds (1, 3, and 5 km/h), where the average human body weight was assumed. Stresses at the bone Gruen zones were measured to check the percentage of stress transfer to the bone for each porous stem design and were compared with the bulk stem. Several FG stem designs were shortlisted for further investigation as candidates for hip implants. |
Sponsor | This paper’s APC was made possible with funding from an NPRP grant, no. NPRP 8-876-2-375. |
Language | en |
Publisher | MDPI |
Subject | Computational analysis Femur bone Hip replacement Implants Stem design Total hip arthroplasty |
Type | Article |
Issue Number | 3 |
Volume Number | 12 |
ESSN | 2076-3417 |
Files in this item
This item appears in the following Collection(s)
-
Mechanical & Industrial Engineering [1339 items ]