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[The bionic artificial joint capsule study (1)--mechanics simulation].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2007 Feb; 24(1):120-3.SW

Abstract

In this paper, a three-dimensional finite element analysis (FEA) model was created for bionic artificial joint with joint capsule. Finite element method (FEM) was used to calculate and simulate mechanics distribution of the joint capsule under different thickness of the joint capsule, different loading, and different angular displacements. The results of the simulation show that the maximum stress is created in the joint area between artificial joint capsule. And the effect of the thickness of the artificial joint capsule on the stress magnitude and distribution is depend on motion model. On standing situation, the maximum stress decreases with the increase of the thickness of joint capsule. However, on walking situation, the maximum stress increases with the increase of the thickness of joint capsule. Whatever conditions simulated, the maximum stress of the artificial joint capsule is not over the limit of the material strength (9.97 megapascals). All the large stress, which gained from the simulation under different situations, locates at the interface between the capsule and the artificial joint. This is because the artificial joint and the capsule transfer loading each other at the interface. At the same time, supporting area of the capsule at the location of the interface is minimum for the whole vesicle. The stress concentration is inevitable at the interface due to the model structure. This result will offer guidance for the optimum joint structure of the capsule and the artificial joint.

Authors+Show Affiliations

Su S
School of Mechanic and Automation Engineering, Shanghai University, Shanghai, China.
Zhang J
No affiliation info available
Tao D
No affiliation info available

MeSH

Arthroplasty, Replacement, KneeBiomechanical PhenomenaComputer SimulationFinite Element AnalysisHumansImaging, Three-DimensionalJoint CapsuleKnee JointKnee ProsthesisModels, BiologicalStress, Mechanical

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

17333904

Citation

Su, Shihu, et al. "[The Bionic Artificial Joint Capsule Study (1)--mechanics Simulation]." Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi, vol. 24, no. 1, 2007, pp. 120-3.
Su S, Zhang J, Tao D. [The bionic artificial joint capsule study (1)--mechanics simulation]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2007;24(1):120-3.
Su, S., Zhang, J., & Tao, D. (2007). [The bionic artificial joint capsule study (1)--mechanics simulation]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi, 24(1), 120-3.
Su S, Zhang J, Tao D. [The Bionic Artificial Joint Capsule Study (1)--mechanics Simulation]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2007;24(1):120-3. PubMed PMID: 17333904.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [The bionic artificial joint capsule study (1)--mechanics simulation]. AU - Su,Shihu, AU - Zhang,Jianhua, AU - Tao,Dehua, PY - 2007/3/6/pubmed PY - 2009/5/22/medline PY - 2007/3/6/entrez SP - 120 EP - 3 JF - Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi JO - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi VL - 24 IS - 1 N2 - In this paper, a three-dimensional finite element analysis (FEA) model was created for bionic artificial joint with joint capsule. Finite element method (FEM) was used to calculate and simulate mechanics distribution of the joint capsule under different thickness of the joint capsule, different loading, and different angular displacements. The results of the simulation show that the maximum stress is created in the joint area between artificial joint capsule. And the effect of the thickness of the artificial joint capsule on the stress magnitude and distribution is depend on motion model. On standing situation, the maximum stress decreases with the increase of the thickness of joint capsule. However, on walking situation, the maximum stress increases with the increase of the thickness of joint capsule. Whatever conditions simulated, the maximum stress of the artificial joint capsule is not over the limit of the material strength (9.97 megapascals). All the large stress, which gained from the simulation under different situations, locates at the interface between the capsule and the artificial joint. This is because the artificial joint and the capsule transfer loading each other at the interface. At the same time, supporting area of the capsule at the location of the interface is minimum for the whole vesicle. The stress concentration is inevitable at the interface due to the model structure. This result will offer guidance for the optimum joint structure of the capsule and the artificial joint. SN - 1001-5515 UR - https://www.unboundmedicine.com/medline/citation/17333904/[The_bionic_artificial_joint_capsule_study__1___mechanics_simulation]_ DB - PRIME DP - Unbound Medicine ER -