BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI
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<strong>BULETINUL</strong> <strong>INSTITUTULUI</strong> <strong>POLITEHNIC</strong> <strong>DIN</strong> <strong>IAŞI</strong><br />
Publicat de<br />
Universitatea Tehnică „Gheorghe Asachi” din Iaşi<br />
Tomul LVIII (LXII), Fasc. 3, 2012<br />
Secţia<br />
MATEMATICĂ. MECANICĂ TEORETICĂ. FIZICĂ<br />
STATIC ANALYSIS OF THE VIRTUAL<br />
HUMAN KNEE JOINT USING FEM<br />
BY<br />
MARIUS CATANĂ and DANIELA TARNIŢĂ ∗<br />
University of Craiova,<br />
Department of Applied Mechanics<br />
Received: May 15, 2012<br />
Accepted for publication: July 10, 2012<br />
Abstract. One of the most important and most complex joint in the human<br />
body is the knee joint. The main objective of this article is to develop a threedimensional<br />
solid finite element model of the knee joint to predict stresses in its<br />
individual components (femur, tibia, peroneus, menisci and cartilages). A nonlinear<br />
analysis was performed. The non-linearities are due to the presence of the<br />
contact elements modelled between components surfaces. This paper presents a<br />
complex human knee joint model with cartilaginous tissue, using ANSYS<br />
Workbench 14.0, which show us multiple contact pairs working together (Nonlinear<br />
analysis) The applied force was equal with 800 N. In this paper the bones<br />
were assumed having isotropic material properties.<br />
Key words: knee joint, FEM, simulation, stresses, displacements.<br />
1. Introduction<br />
One of the most important joint in the human body is the knee joint.<br />
Many papers have been published about it, but most of these works use<br />
simplified models, using 2D or some using 3D approaches but without knee<br />
joint essential parts. While the mathematical models of the knee joint can be<br />
useful to predict forces and stresses in individual structures of the articulation,<br />
as well as to estimate its kinematics, validation of such models is a challenging<br />
task. It is complicated to make a computational model of the knee that<br />
∗ Corresponding author: e-mail: dtarnita@yahoo.com