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首页> 外文学位 >Polyethylene Wear Modeling in Modular Total Knee Replacements using Finite Element Simulation.
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Polyethylene Wear Modeling in Modular Total Knee Replacements using Finite Element Simulation.

机译：使用有限元模拟在模块化全膝关节置换术中进行聚乙烯磨损建模。

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摘要

A computational model for the prediction of articular and backside polyethylene (PE) wear of total knee replacements (TKRs) could enable the optimization of TKRs for the reduction of polyethylene wear, thereby improving the long term success of TKRs. A finite element model was developed for the TKR and the results were implemented in a computational wear model to assess PE wear. The wear factors of Archard's wear law were identified by implementing the finite element simulation results along with knee simulator wear test results. Archard's wear law was found to have insufficient accuracy for the purpose of optimization. Therefore, a novel computational wear model was developed by the author based on a theoretical understanding of the molecular behavior of PE. The model predicted result fell within the standard deviation of the independent knee simulator wear test results, indicating a high level of accuracy for the novel computational wear model.
机译：用于预测全膝关节置换术（TKR）的关节和后侧聚乙烯（PE）磨损的计算模型可以优化TKR，以减少聚乙烯磨损，从而提高TKR的长期成功率。为TKR开发了有限元模型，并在计算磨损模型中实现了结果以评估PE磨损。通过实施有限元模拟结果以及膝部模拟器的磨损测试结果，可以确定阿卡德磨损定律的磨损因子。为了优化的目的，发现阿卡德的磨损定律精度不足。因此，作者基于对PE分子行为的理论理解，开发了一种新颖的计算磨损模型。该模型的预测结果落在独立膝盖模拟器磨损测试结果的标准偏差之内，这表明该新型计算磨损模型具有很高的准确性。

著录项

  • 作者

    O'Brien, Sean Tyler.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Engineering Biomedical.;Engineering Mechanical.
  • 学位 M.Sc.
  • 年度 2012
  • 页码 134 p.
  • 总页数 134
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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