Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation
Hip implants are prostheses designed for severe hip arthritis patients. One of its components, acetabular cup is mostly made from ultra-high molecular weight polyethylene (UHMWPE). This polymer has a wear problem. Its debris would cause osteolysis followed by implant failures. Numerical studies of t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Science
2019
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| Online Access: | https://repository.ugm.ac.id/275248/1/Conference%201%202018%20ITB%20-%20Handoko_2019_IOP_Conf._Ser.__Mater._Sci._Eng._547_012015.pdf |
| _version_ | 1826049910663806976 |
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| author | Handoko, Handoko Suyitno, Suyitno Dharmastiti, Rini Magetsari, Rahadyan |
| author_facet | Handoko, Handoko Suyitno, Suyitno Dharmastiti, Rini Magetsari, Rahadyan |
| author_sort | Handoko, Handoko |
| collection | UGM |
| description | Hip implants are prostheses designed for severe hip arthritis patients. One of its components, acetabular cup is mostly made from ultra-high molecular weight polyethylene (UHMWPE). This polymer has a wear problem. Its debris would cause osteolysis followed by implant failures. Numerical studies of this problem were commonly used a linear contact pressure wear equation. Recently it was found not suitable to model the polymer wear in hip implants. This study used a nonlinear equation to predict the UHMWPE volumetric wear. It states a nonlinear relation between wear, load and contact area. The computation model was a biaxial rocking motion hip simulator assembly with UHMWPE acetabular cup sliding on commercially pure titanium femoral head. Multidirectional pin on disc experiments conducted to obtain wear factor and coefficient of friction data for the computations. Commercial finite element software calculated the other parameters. Predicted volumetric wear has a good agreement with the experimental data. Lowest numerical error was found 0.53 %. |
| first_indexed | 2024-03-13T23:54:39Z |
| format | Article |
| id | oai:generic.eprints.org:275248 |
| institution | Universiti Gadjah Mada |
| language | English |
| last_indexed | 2024-03-13T23:54:39Z |
| publishDate | 2019 |
| publisher | IOP Science |
| record_format | dspace |
| spelling | oai:generic.eprints.org:2752482019-10-01T01:08:10Z https://repository.ugm.ac.id/275248/ Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation Handoko, Handoko Suyitno, Suyitno Dharmastiti, Rini Magetsari, Rahadyan Polymers and Plastics Tribology Biomechanics Hip implants are prostheses designed for severe hip arthritis patients. One of its components, acetabular cup is mostly made from ultra-high molecular weight polyethylene (UHMWPE). This polymer has a wear problem. Its debris would cause osteolysis followed by implant failures. Numerical studies of this problem were commonly used a linear contact pressure wear equation. Recently it was found not suitable to model the polymer wear in hip implants. This study used a nonlinear equation to predict the UHMWPE volumetric wear. It states a nonlinear relation between wear, load and contact area. The computation model was a biaxial rocking motion hip simulator assembly with UHMWPE acetabular cup sliding on commercially pure titanium femoral head. Multidirectional pin on disc experiments conducted to obtain wear factor and coefficient of friction data for the computations. Commercial finite element software calculated the other parameters. Predicted volumetric wear has a good agreement with the experimental data. Lowest numerical error was found 0.53 %. IOP Science 2019 Article PeerReviewed application/pdf en cc_public_domain https://repository.ugm.ac.id/275248/1/Conference%201%202018%20ITB%20-%20Handoko_2019_IOP_Conf._Ser.__Mater._Sci._Eng._547_012015.pdf Handoko, Handoko and Suyitno, Suyitno and Dharmastiti, Rini and Magetsari, Rahadyan (2019) Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation. IOP Conference Series: Materials Science and Engineering, 547 (1). pp. 1-9. ISSN 17578981, 1757899X https://iopscience.iop.org/article/10.1088/1757-899X/547/1/012015 DOI: https://doi.org/10.1088/1757-899X/547/1/012015 |
| spellingShingle | Polymers and Plastics Tribology Biomechanics Handoko, Handoko Suyitno, Suyitno Dharmastiti, Rini Magetsari, Rahadyan Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title | Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title_full | Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title_fullStr | Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title_full_unstemmed | Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title_short | Wear Prediction of UHMWPE Cup Against Commercially Pure Titanium Hip Implant With The Nonlinear Load and Contact Area Wear Equation |
| title_sort | wear prediction of uhmwpe cup against commercially pure titanium hip implant with the nonlinear load and contact area wear equation |
| topic | Polymers and Plastics Tribology Biomechanics |
| url | https://repository.ugm.ac.id/275248/1/Conference%201%202018%20ITB%20-%20Handoko_2019_IOP_Conf._Ser.__Mater._Sci._Eng._547_012015.pdf |
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