ARTICLE
3D FE analysis of the behavior of elliptical cracks on orthopedic cement of the total hip prosthesis
 
More details
Hide details
1
Mechanical Engineering Department Djillali Liabes University of Sidi Bel-Abbes, Algeria
2
LMPM, Department of Mechanics, Faculty of Engineering, University of Sidi-Bel-Abbes
3
Djillali Liabes University of Sidi Bel-Abbes, Mechanical Engineering Department, LMRS
Publication date: 2018-07-20
 
Journal of Theoretical and Applied Mechanics 2018;56(3):803–813
 
KEYWORDS
ABSTRACT
An explicit analysis conducted on the crack behavior in chirurgical cement (Polymethylme- thacrylate – PMMA) used for Total Hip Prosthesis (THP) is of great importance in collecting information about the nature of the phenomenon of loosening of the cement application. The rupture of the orthopedic cement is practically the main cause of this loosening. Understan- ding different rupture mechanisms give a great value in advancing the durability of the cemented total prosthesis. The purpose of this study is to analyse cracks behavior, initiated in the cement that links the femoral-stem with the bone, using the Finite Element Analysis Method (FEM). The present study brings into focus the variation of the stress intensity factor in modes I, II and III. This rupture criterion is used according to the nature of crack, its orientation and its location in the orthopedic cement. At first, the level and distribution of the equivalent von Mises stress is analysed, which is induced in the medial, proximal and distal parts of the bone cement. Then, the behavior of different geometric forms of an elliptical crack is evaluated which are located and initiated within the body of these three parts.
eISSN:2543-6309
ISSN:1429-2955