Finite element wear prediction using adaptive meshing at the modular taper interface of hip implants

Thom Bitter (Corresponding Author), Imran Khan, Tim Marriott, Elaine Lovelady, Nico Verdonschot, Dennis Janssen

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
1 Downloads (Pure)

Abstract

The use of modular components in total hip arthroplasty introduced an additional interface with the potential for fretting and corrosion to occur. Fretting and corrosion at this interface have been reported as a potential cause of early failure of the implant system. Using finite element (FE) analyses the mechanics at the taper junction can be studied. However, most FE studies are based on a single load condition and do not take geometry changes over time into account. Therefore, in this study an FE routine was developed, in which adaptations to the implant geometry are made to account for material removal during the fretting process. Material removal was simulated based on Archard's Law, incorporating contact pressure, micromotions and a wear factor which used input from in vitro fretting tests. A wear factor of 2.7*10−5 mm3/N mm was used to match the FE predicted volumetric wear to the measured experimental volumetric wear of 0.79 mm3 after 10 million cycles. The maximum experimental wear depth found was 30.5 ± 17 µm, while the FE predicted a maximum wear depth of 27 µm. The adaptive meshing method has delivered results that are more similar to the experimental test data in comparison to the results from modelling a single cycle without adaptive meshing.

Original languageEnglish
Pages (from-to)616-623
Number of pages8
JournalJournal of the mechanical behavior of biomedical materials
Volume77
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Wear of materials
Corrosion
Arthroplasty
Geometry
Mechanics

Keywords

  • Experimental
  • FEA
  • Finite element
  • Fretting
  • Taper
  • THA
  • Total hip arthroplasty
  • Wear
  • Abonnement

Cite this

Bitter, Thom ; Khan, Imran ; Marriott, Tim ; Lovelady, Elaine ; Verdonschot, Nico ; Janssen, Dennis. / Finite element wear prediction using adaptive meshing at the modular taper interface of hip implants. In: Journal of the mechanical behavior of biomedical materials. 2018 ; Vol. 77. pp. 616-623.
@article{47c1bbcf2aa84ed5aba82a1622cea439,
title = "Finite element wear prediction using adaptive meshing at the modular taper interface of hip implants",
abstract = "The use of modular components in total hip arthroplasty introduced an additional interface with the potential for fretting and corrosion to occur. Fretting and corrosion at this interface have been reported as a potential cause of early failure of the implant system. Using finite element (FE) analyses the mechanics at the taper junction can be studied. However, most FE studies are based on a single load condition and do not take geometry changes over time into account. Therefore, in this study an FE routine was developed, in which adaptations to the implant geometry are made to account for material removal during the fretting process. Material removal was simulated based on Archard's Law, incorporating contact pressure, micromotions and a wear factor which used input from in vitro fretting tests. A wear factor of 2.7*10−5 mm3/N mm was used to match the FE predicted volumetric wear to the measured experimental volumetric wear of 0.79 mm3 after 10 million cycles. The maximum experimental wear depth found was 30.5 ± 17 µm, while the FE predicted a maximum wear depth of 27 µm. The adaptive meshing method has delivered results that are more similar to the experimental test data in comparison to the results from modelling a single cycle without adaptive meshing.",
keywords = "Experimental, FEA, Finite element, Fretting, Taper, THA, Total hip arthroplasty, Wear, Abonnement",
author = "Thom Bitter and Imran Khan and Tim Marriott and Elaine Lovelady and Nico Verdonschot and Dennis Janssen",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.jmbbm.2017.10.032",
language = "English",
volume = "77",
pages = "616--623",
journal = "Journal of the mechanical behavior of biomedical materials",
issn = "1751-6161",
publisher = "Elsevier",

}

Finite element wear prediction using adaptive meshing at the modular taper interface of hip implants. / Bitter, Thom (Corresponding Author); Khan, Imran; Marriott, Tim; Lovelady, Elaine; Verdonschot, Nico; Janssen, Dennis.

In: Journal of the mechanical behavior of biomedical materials, Vol. 77, 01.01.2018, p. 616-623.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Finite element wear prediction using adaptive meshing at the modular taper interface of hip implants

AU - Bitter, Thom

AU - Khan, Imran

AU - Marriott, Tim

AU - Lovelady, Elaine

AU - Verdonschot, Nico

AU - Janssen, Dennis

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The use of modular components in total hip arthroplasty introduced an additional interface with the potential for fretting and corrosion to occur. Fretting and corrosion at this interface have been reported as a potential cause of early failure of the implant system. Using finite element (FE) analyses the mechanics at the taper junction can be studied. However, most FE studies are based on a single load condition and do not take geometry changes over time into account. Therefore, in this study an FE routine was developed, in which adaptations to the implant geometry are made to account for material removal during the fretting process. Material removal was simulated based on Archard's Law, incorporating contact pressure, micromotions and a wear factor which used input from in vitro fretting tests. A wear factor of 2.7*10−5 mm3/N mm was used to match the FE predicted volumetric wear to the measured experimental volumetric wear of 0.79 mm3 after 10 million cycles. The maximum experimental wear depth found was 30.5 ± 17 µm, while the FE predicted a maximum wear depth of 27 µm. The adaptive meshing method has delivered results that are more similar to the experimental test data in comparison to the results from modelling a single cycle without adaptive meshing.

AB - The use of modular components in total hip arthroplasty introduced an additional interface with the potential for fretting and corrosion to occur. Fretting and corrosion at this interface have been reported as a potential cause of early failure of the implant system. Using finite element (FE) analyses the mechanics at the taper junction can be studied. However, most FE studies are based on a single load condition and do not take geometry changes over time into account. Therefore, in this study an FE routine was developed, in which adaptations to the implant geometry are made to account for material removal during the fretting process. Material removal was simulated based on Archard's Law, incorporating contact pressure, micromotions and a wear factor which used input from in vitro fretting tests. A wear factor of 2.7*10−5 mm3/N mm was used to match the FE predicted volumetric wear to the measured experimental volumetric wear of 0.79 mm3 after 10 million cycles. The maximum experimental wear depth found was 30.5 ± 17 µm, while the FE predicted a maximum wear depth of 27 µm. The adaptive meshing method has delivered results that are more similar to the experimental test data in comparison to the results from modelling a single cycle without adaptive meshing.

KW - Experimental

KW - FEA

KW - Finite element

KW - Fretting

KW - Taper

KW - THA

KW - Total hip arthroplasty

KW - Wear

KW - Abonnement

U2 - 10.1016/j.jmbbm.2017.10.032

DO - 10.1016/j.jmbbm.2017.10.032

M3 - Article

VL - 77

SP - 616

EP - 623

JO - Journal of the mechanical behavior of biomedical materials

JF - Journal of the mechanical behavior of biomedical materials

SN - 1751-6161

ER -