Finite Element Analysis of Human Knee Joint and Artificial Knee Joint
碩士 === 中原大學 === 醫學工程學系 === 85 === The purpose of this study is to perform three-dimensional finite element contact stress analyses of the human knee joint and the artificial knee joint. In the human knee joint finite element analysis, CT scan images were used to obtain the cortical and cancellous b...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
1997
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| Online Access: | http://ndltd.ncl.edu.tw/handle/77946515570961747576 |
| Summary: | 碩士 === 中原大學 === 醫學工程學系 === 85 === The purpose of this study is to perform three-dimensional finite element contact stress analyses of the human knee joint and the artificial knee joint. In the human knee joint finite element analysis, CT scan images were used to obtain the cortical and cancellous bone contours of the femur and the tibia in each cross-section. The contours were used to generate the triangular surface model and then tetrahedral finite element mesh was created by using a commercial finite element software - MARC. Contact stress analysis for the knee joint subjected to the stance loading condition was performed on a Cray supercomputer. The convergence of the mesh was also verified. In the artificial knee joint finite element analysis, the surface geometric data of the artificial femoral and tibial components was obtained from a three-dimensional digital scanning system and the triangular surface models and the tetrahedral finite element meshes for the artificial femoral and tibial components were generated in a similar procedure used in the human knee joint model. Contact stress distributions for the UHMWPE part of the tibial component were investigated for linear and nonlinear material properties.
In this study, anatomically accurate finite element models for the human knee joint and the artificial knee joint were created. These models can provide a means for evaluating the stress distributions of the bone-implant structure under various loading conditions. The results can provide valuable information for understanding the biomechanics of the knee joint.
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