You are here

FINITE ELEMENT ANALYSIS OF A TEST SPECIMEN FOR STRENGTH OF A CO-POLYMER AT A BONE-IMPLANT INTERFACE.

Download pdf | Full Screen View

Date Issued:
2004
Abstract/Description:
The aim of this work is to evaluate the mechanical strength of a co-polymer of 2-hydroxyethylmethacrylate (HEMA) and methylmethacrylate (MMA), so that it can be applied as an interfacial layer between bone cement and steel implants to improve their performance and life. Finite element (FE) analysis techniques are used to assess the behavior of the interface layer under static and dynamic loading conditions. The material property of the co-polymer is a function of its composition and water saturation. The factors affecting the strength of the bone-implant interface are many. Implant interfacial fracture can lead to decreased stability. Fatigue life is a very important process in failure. The results obtained from static and dynamic analyses show that increasing the percentage of HEMA improves the strength of the interface by reducing the stiffness of the implant, absorbing more energy and by reducing the interfacial stress peaks and making the stress distribution more nearly uniform.
Title: FINITE ELEMENT ANALYSIS OF A TEST SPECIMEN FOR STRENGTH OF A CO-POLYMER AT A BONE-IMPLANT INTERFACE.
18 views
11 downloads
Name(s): Chhabra, Nitin, Author
Nicholson, David W., Committee Chair
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2004
Publisher: University of Central Florida
Language(s): English
Abstract/Description: The aim of this work is to evaluate the mechanical strength of a co-polymer of 2-hydroxyethylmethacrylate (HEMA) and methylmethacrylate (MMA), so that it can be applied as an interfacial layer between bone cement and steel implants to improve their performance and life. Finite element (FE) analysis techniques are used to assess the behavior of the interface layer under static and dynamic loading conditions. The material property of the co-polymer is a function of its composition and water saturation. The factors affecting the strength of the bone-implant interface are many. Implant interfacial fracture can lead to decreased stability. Fatigue life is a very important process in failure. The results obtained from static and dynamic analyses show that increasing the percentage of HEMA improves the strength of the interface by reducing the stiffness of the implant, absorbing more energy and by reducing the interfacial stress peaks and making the stress distribution more nearly uniform.
Identifier: CFE0000076 (IID), ucf:46082 (fedora)
Note(s): 2004-08-01
M.S.M.E.
College of Engineering and Computer Science, Department of Mechanical, Materials, and Aerospace Engineering
This record was generated from author submitted information.
Subject(s): FEA
LSDYNA
PMMA
PATRAN
Stress
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFE0000076
Restrictions on Access: public
Host Institution: UCF

In Collections