Design Aspects and Fracture Behaviour of Titanium Alloy Artifical Hip Implant

0398776 - ÚGN 2014 RIV SK eng C - Conference Paper (international conference)
Colic, K. - Sedmak, A. - Gubeljak, N. - Hloch, Sergej - Veg, A.
Design Aspects and Fracture Behaviour of Titanium Alloy Artifical Hip Implant.
TEAM 2013. Proceedings of the 5th International Scientific and Expert Conference of the International TEAM Society. Prešov: Technická univerzita v Košicích se sídlem v Prešově, 2013 - (Lehocká, D.; Cárach, J.; Knapčíková, L.; Hloch, S.), s. 22-25. TEAM. ISSN 1847-9065.
[International Scientific and Expert Conference of the International TEAM Society (Technique, Education, Agriculture & Management) /5./. Prešov (SK), 04.11.2013-06.11.2013]
Institutional support: RVO:68145535
Keywords : fracture behaviour * biomedical applications design * Ti-6AI-4V alloy * digital image correlation
Subject RIV: JQ - Machines ; Tools

In this paper an experimental investigation of hip replacement implant is presented. The longterm stability of hip implants depends, among other things, on the loads acting across the joint. The force magnitudes are of interest, and the modified standard investigation of an implant was performed. The results indicate that forces occurring in vivo can be much greater than the recommended test values, and can cause implant stress field changes and implant stability problems. An analysis of titanium alloys that are used as biomaterials in biomedical applications, such as artificial joint implants, is also presented from a fracture mechanics perspective. It is shown that it is necessary to understand the fatigue crack initiation and propagation characteristics in order to prevent catastrophic failure of the implant. The fracture behaviour of Ti-6Al-4V is investigated by means of standard fracture mechanics tests. The results indicate that this new optical stereometric measurement methodology produces good results in investigation of fracture behaviour of bimetallic materials.
Permanent Link: http://hdl.handle.net/11104/0226215