Investigating the stress relaxation of photopolymer O-ring seal models
Investigating the stress relaxation of photopolymer O-ring seal models
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DOI：
10.1108/rpj-04-2013-0043
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发表时间：
2014-01-01
影响因子：
3.9
通讯作者：
Bochnia, Jerzy
中科院分区：
文献类型：
--
作者：
Kundera, Czeslaw;Bochnia, Jerzy
目的 - 本文旨在研究增材制造生产 O 形圈密封件的适用性。设计/方法/途径 - O 形圈是通过 PolyJet-Matrix 技术使用四种不同的数字材料制造的，然后在静态和动态（滑动）条件下测试松弛特性。松弛曲线的近似涉及使用 Prony 系列进行建模。研究结果 - PolyJet-Matrix 技术为弹性体元件建模提供了新的机会，例如生产 O 形圈并测试其松弛特性。通过使用弛豫函数来描述用该技术制造的特定材料的行为将扩展数字材料的知识库。研究限制/含义-实验中使用的四种类型的光聚合物的粘弹性特性不同。 O 形圈模型的应力松弛分析是在加载元件的四个不同阶跃位移下进行的。实际意义 - 测试结果可能对由新型弹性体材料制成的 O 形圈密封件的设计有用。由此类材料制成的 O 形圈的松弛特性可用于分析密封件的动力学，例如面密封件。 原创性/价值 - 该作品的原创性在于使用数字材料来设计和生产具有不同松弛特性的弹性体元件，测试结果证实了这一点。本文介绍了环模型和环的材料的松弛分析结果。它还讨论了如何在实践中应用 3D 打印和数字材料。
Purpose - This paper aims to investigate the suitability of additive manufacturing to produce O-ring seals.Design/methodology/approach - The O-rings were made by the PolyJet-Matrix technology using four different digital materials and then tested for relaxation properties under static and dynamic (sliding) conditions. The approximation of the relaxation curves involved modelling with a Prony series.Findings - The PolyJet-Matrix technology offers new opportunities to model elastomeric elements, with examples being the O-rings produced and tested for their relaxation properties. Describing the behaviour of the particular materials fabricated with this technology by using relaxation functions will extend the knowledge base on digital materials.Research limitations/implications - The four types of photopolymers used in the experiment differed in viscoelastic properties. The analysis of the stress relaxation of the O-ring models was performed at four different step displacements of the loading element.Practical implications - The test results may be useful for the design of O-ring seals made of new elastomeric materials. The relaxation properties of the O-rings made of such materials can be applied to analyse the dynamics of seals, for instance, face seals.Originality/value - The originality of the work lies in the use of digital materials to design and produce elastomeric elements with different relaxation properties, which was confirmed by the test results. This paper presents results of a relaxation analysis for a ring model and the material that the ring is made of. It also discusses how 3D printing and digital materials can be applied in practice.