PRELIMINARY STUDIES REGARDING LOAD TRANSFER MECHANISM IN TOTAL HIP PROSTHESES WITH ROLLING BALLS
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2010, Vol 55, Issue 1
Abstract
Changing the contact mechanism for the artificial hip joint from one sliding contact between two large surfaces, to a multitude of rolling contacts, could lead to serious problems regarding functionality and durability of the active prosthesis elements. The key to an accurate evaluation of damaging mechanisms acting on THP with rolling balls is a clear and complete picture of load transfer mechanism. The present paper summarize preliminary results regarding dynamics of some original design proposed previously by the authors, combining general nonlinear FE analyses of entire joint with analytical evaluations of local contacts.
Authors and Affiliations
Aron IAROVICI, Justin ONIŞORU, Lucian CĂPITANU
Keywords
Related Articles
- EP ID EP155121
- DOI -
- Views 69
- Downloads 0
DD3IMP, 3D FULLY IMPLICIT FINITE ELEMENT SOLVER: IMPLEMENTATION OF CB2001 YIELD CRITERION
The strategies and algorithms adopted in the fully implicit FE solver DD3IMP to model the orthotropic behavior of metallic sheets, as well the procedure for parameters’ identification, are the main focus of this work; a...
INFLUENCE OF LANTHANUM DOPING ON THE STRUCTURAL, MORPHOLOGICAL AND THERMAL CHARACTERISTICS OF NICKEL FERRITE
Lanthanum doped nickel ferrite – NiFe1-δLaδO4 has been synthesised by solid state reaction using nickel and iron oxides (NiO and Fe2O3) and lanthanum hydroxide (La(OH)3). The samples have been investigated by X-ray diffr...
INVESTIGATION OF THE ELASTOPLASTIC BEHAVIOR OF FCC POLYCRYTALS USING A FFT NUMERICAL SCHEME
This work is devoted to the study of the effective mechanical response and strain and stress field fluctuations in FCC untextured polycrystals using a full-field numerical approach for a crystalline rate-independent elas...
ON THE INVERSE SONIFICATION PROBLEM
The inverse sonification problem is discussed in this paper in order to identify new features in its capability to discover hidden details in the medical images. In contrast to the direct problem of sonification that con...
DYNAMICS OF A 2-DOF ORIENTING GEAR MECHANISM
Recursive matrix relations for the kinematics and the dynamics analysis of a 2-DOF orienting gear train are established in this paper. The mechanism is a parallel system with five moving links and three bevel gear pairs...