Fatigue behavior of Zirconia hip joint heads: Experimental results and finite element analysis

✍ Scribed by Drouin, J. M. ;Cales, B. ;Chevalier, J. ;Fantozzi, G.

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 356 KB
• Volume: 34
• Category: Article
• ISSN: 0021-9304
• DOI: 10.1002/(sici)1097-4636(199702)34:2<149::aid-jbm2>3.0.co;2-q

✦ Synopsis

Crack propagation in a commercial surgical grade zirconia terials used in orthopedics, which could lead to a strong ceramic was performed under static and cyclic loading. The enhancement of implant lifetime. This threshold value was slow crack growth (SCG) parameters were determined in also identified by cyclic fatigue tests performed on zirconia both cases. The results reveal the existence of threshold val-femoral heads. From a new statistical approach based on the ues of applied stress intensity factor, for both static and cyclic Monte Carlo method, the knowledge of SCG behavior, and loadings, below which no slow crack growth occurs. Such the help of finite element analysis, an estimate of the lifetime threshold values represent one of the best advantages of the prediction has been made and discussed. ᭧ 1997 John Wiley & present zirconia ceramic compared with other ceramic ma-Sons, Inc.