Abstract The aim of the study was to present numerical strength analysis of the virtual knee and hip joints for the most popular tribological pairs used in prosthetic arthroplasty based on the Finite Elements Method. FEM makes it possible to calculate the stress in particular elements of the tested models. The research was dedicated to elucidate abrasive wear mechanisms during surface grinding of a polyethylene UHMW and a metal elements of endoprostheses. Strong adhesion was found between the abrasives and workpieces, which might be attributed to the chemical bonding between the abrasives and workpieces in synovial liquid. Therefore, the wear of UHMWPE is both chemical and physical. Abrasive wear effect, as a result of the abrasive wear process, is associated with material loss of the element surface layer due to the separation of particles by fissuring, stretching, or micro-cutting.

中文翻译：

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所选人造人体关节的超高分子量聚乙烯元件中应力和应变分布的建模和计算

摘要 本研究的目的是基于有限元方法对假肢关节置换术中最流行的摩擦学对的虚拟膝关节和髋关节进行数值强度分析。FEM 可以计算测试模型的特定元素中的应力。该研究致力于阐明聚乙烯 UHMW 和内置假体金属元件表面研磨过程中的磨损机制。磨料与工件之间有很强的附着力，这可能是由于磨料与工件在滑液中的化学结合所致。因此，UHMWPE 的磨损既是化学的，也是物理的。磨粒磨损效应，作为磨粒磨损过程的结果，