Modeling knee joint endoprosthesis mode of deformation

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Yu Skeeba, V.^1 ; Ivancivsky, V.V.^1

Novosibirsk State Technical University, Prospekt K. Marksa 20, Novosibirsk

630073, Russia^1

关键词: Efficient designs;    Equivalent stress distribution;    Mode of deformation;    Prosthetic design;    Relative deformation;    Solidworks software;    Technological development;    Triangulated surfaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/4/042120/pdf
DOI  :  10.1088/1757-899X/327/4/042120

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The purpose of the work was to define the efficient design of the endoprosthesis, working in a multiple-cycle loading environment. Methodology and methods: triangulated surfaces of the base contact surfaces of endoprosthesis butt elements have been created using the PowerShape and SolidWorks software functional environment, and the assemblies of the possible combinations of the knee joint prosthetic designs have been prepared. The mode of deformation modeling took place in the multipurpose program complex ANSYS. Results and discussion: As a result of the numerical modeling, the following data were obtained for each of the developed knee joint versions: the distribution fields of absolute (total) and relative deformations; equivalent stress distribution fields; fatigue strength coefficient distribution fields. In the course of the studies, the following efficient design assembly has been established: 1) Ti-Al-V alloy composite femoral component with polymer inserts; 2) ceramic liners of the compound separator; 3) a Ti-Al-V alloy composite tibial component. The fatigue strength coefficient for the femoral component is 4.2; for the femoral component polymer inserts is 1.2; for the ceramic liners of the compound separator is 3.1; for the tibial component is 2.7. This promising endoprosthesis structure is recommended for further design and technological development.