几种应用于超高分子量聚乙烯人造关节的本构模型对比探讨

李 佳南(韶关学院智能工程学院,中国)
胡 松喜(韶关学院智能工程学院,中国)
肖 正杰(韶关学院智能工程学院,中国)
潘 东扬(韶关学院智能工程学院,中国)
江 晨虹(韶关学院智能工程学院,中国)

DOI: http://dx.doi.org/10.12349/iser.v6i10.7908

Article ID: 7908

摘要


超高分子量聚乙烯(UHMWPE)制品作为人工关节被广泛应用于生物医学领域。UHMWPE人工关节在使用过程中受到不同形态的应力作用,导致出现疲劳、磨损,甚至是断裂等行为。为了预测UHMWPE人工关节在复杂应力下的破坏情况,最重要的是有一个准确和有效的本构模型来描述UHMWPE在任意变形历史中的响应。本文分析并列出几种UHMWPE常用的本构模型的优点和局限性,通过对比J2、AB、HB、BB、HM等模型预测、描述UHMWPE制品力学行为的能力,得出预测UHMWPE关节力学行为的最有效模型。

关键词


超高分子量聚乙烯;人工关节;本构模型;预测

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参考


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