Finite element analysis of EBM manufactured bespoke implants: A probabilistic study

This study analyses three additively manufactured canine implants designed for angular limb deformity correction procedure through probabilistic numerical analysis. These implants have produced excellent results in-vivo and are operational to-date. Therefore, this study uses finite element analysis...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine Journal of engineering in medicine, 2021-04, Vol.235 (4), p.389-400
Main Authors: Gupta, Akash, Millward, Huw, Lewis, Alan
Format: Article
Language:English
Subjects:
Boundary conditions
Failure analysis
Finite element analysis
Finite element method
Implants
Interrogation
Numerical analysis
Parameter identification
Parameter sensitivity
Probability theory
Reliability analysis
Robustness (mathematics)
Sensitivity analysis
Statistical analysis
Transplants & implants
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study analyses three additively manufactured canine implants designed for angular limb deformity correction procedure through probabilistic numerical analysis. These implants have produced excellent results in-vivo and are operational to-date. Therefore, this study uses finite element analysis in conjunction with statistical analysis in order to further validate these implants from a numerical perspective. Due to uncertainties associated with boundary conditions for a bespoke implant geometry, the analyses in this study were conducted on a range of input values. An interrogation of these parameters through sensitivity analysis enabled in identifying the vital inputs. These inputs were then employed to conduct robustness analysis in order to determine the mean value of stress on which these implants ideally operate. These mean values were then compared with the associated safety and failure limit to obtain the probability of reaching these limits through different reliability techniques. A low probability of failure computed from numerical analysis in combination with the continued performance of these implants, suggests a successful integration of the methodology in the design phase of bespoke implants.
ISSN:0954-4119
2041-3033
DOI:10.1177/0954411920983654