Research Data Leeds Repository

Citation

Jahani, Faezeh and Etchels, Lee and Wang, Lin and Thompson, Jonathan and Barton, David and Wilcox, Ruth and Fisher, John and Jones, Alison (2021) Dataset supporting the publication “Importance of dynamics in the finite element prediction of plastic damage of polyethylene acetabular liners under edge loading conditions”. University of Leeds. [Dataset] https://doi.org/10.5518/971

Dataset description

This dataset contains the full set of output values from a modelling study, summarised as follows. After hip replacement, in cases where there is instability at the joint, contact between the femoral head and the acetabular liner can move from the bearing surface to the liner rim, generating edge loading conditions. This has been linked to polyethylene liner fracture and led to the development of a regulatory testing standard (ISO 14242:4) to replicate these conditions. Performing computational modelling alongside simulator testing can provide insight into the complex damage mechanisms present in hard-on-soft bearings under edge loading. The aim of this work was to evaluate the need for inertia and elastoplastic material properties to predict kinematics (likelihood of edge loading) and plastic strain accumulation (as a damage indicator). While a static, rigid model was sufficient to predict kinematics for experimental test planning, the inclusion of inertia, alongside elastoplastic material, was required for prediction of plastic strain behaviour. The delay in device realignment during heel strike, caused by inertia, substantially increased the force experienced during rim loading (e.g. 600 N static rigid, ~1800 N dynamic elastoplastic, in one case). The accumulation of plastic strain is influenced by factors including cup orientation, swing phase force balance, the moving mass, and the design of the device itself. Evaluation of future liner designs could employ dynamic elastoplastic models to investigate the effect of design feature changes on bearing resilience under edge loading.

Keywords:	Hip replacement, ultra-high molecular weight polyethylene, finite element, edge loading, ISO testing.
Subjects:	H000 - Engineering > H100 - General engineering > H160 - Bioengineering, biomedical engineering & clinical engineering
Divisions:	Faculty of Biological Sciences > Institute of Medical and Biological Engineering Faculty of Engineering and Physical Sciences > Institute of Medical and Biological Engineering Faculty of Engineering and Physical Sciences > School of Mechanical Engineering > Institute of Medical and Biological Engineering Faculty of Engineering and Physical Sciences > School of Mechanical Engineering
Related resources:	Location Type https://doi.org/10.1016/j.medengphy.2021.07.010 Publication https://eprints.whiterose.ac.uk/177105/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	13 May 2021 11:48
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/840
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Jahani, Faezeh University of Leeds https://ror.org/024mrxd33 ror Etchels, Lee https://orcid.org/0000-0001-5424-7226 University of Leeds https://ror.org/024mrxd33 ror Wang, Lin https://orcid.org/0000-0003-3779-8258 DePuy Synthes Thompson, Jonathan https://orcid.org/0000-0002-2152-0764 DePuy Synthes Barton, David https://orcid.org/0000-0003-4986-5817 University of Leeds https://ror.org/024mrxd33 ror Wilcox, Ruth https://orcid.org/0000-0003-2736-7104 University of Leeds https://ror.org/024mrxd33 ror Fisher, John https://orcid.org/0000-0003-3833-3700 University of Leeds https://ror.org/024mrxd33 ror Jones, Alison https://orcid.org/0000-0002-4984-7507 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: EPSRC, DePuy Synthes Joint Reconstruction (Leeds, UK) Grant numbers: EP/N02480X/1; internal code 107281, DepPuy DHRC, internal code 103562 Publication date: 2021 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: jhs8acj@leeds.ac.uk Last Modified: 09 Jul 2024 12:11

Files

Documentation

Read Me [1kB] Read Me [1kB] Read Me [1kB] Security: Anyone File name: README.txt Content type: Documentation Description: Dataset contents list, references and contextual information. Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1kB

Data

Swing phase results (all models) [2kB] Swing phase results (all models) [2kB] Swing phase results (all models) [2kB] Security: Anyone File name: swing_phase_results.csv Content type: Data Mime-Type: text/csv License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2kB

Full cycle finite element results 35 degrees [5kB] Full cycle finite element results 35 degrees [5kB] Full cycle finite element results 35 degrees [5kB] Security: Anyone File name: full_cycle_FE_results_35degree_cases.csv Content type: Data Mime-Type: text/csv License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 5kB

Full cycle finite element results 55 degrees [3kB] Full cycle finite element results 55 degrees [3kB] Full cycle finite element results 55 degrees [3kB] Security: Anyone File name: full_cycle_FE_results_55degree_cases.csv Content type: Data Mime-Type: text/csv License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 3kB

Full cycle PyEL results [259kB] Full cycle PyEL results [259kB] Full cycle PyEL results [259kB] Security: Anyone File name: full_cycle_PyEL_results.csv Content type: Data Mime-Type: text/csv License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 259kB