On the ageing behaviour of NBR: chemomechanical experiments, modelling and simulation of tension set

On the ageing behaviour of NBR: chemomechanical experiments, modelling and simulation of tension set
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NBR 的老化行为:化学机械实验、张力永久变形建模和模拟

DOI:
10.1007/s00161-018-0728-5
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发表时间:
2018
影响因子:
2.6
通讯作者:
A. Lion
A. Lion
中科院分区:
工程技术3区
文献类型:
--
作者:
B. Musil;M. Johlitz ;A. Lion

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由丁腈橡胶(NBR)生产的橡胶部件由于环境影响而改变其材料特性。这是由弹性体网络中发生的不可逆变化引起的,称为化学老化。本文研究了丁腈橡胶在不同环境介质(空气和油)影响下的老化行为。基于以前的工作,其中化学老化也建模,连续力学方法在这里介绍,其中橡胶粘弹性考虑在内。然后在不同的化学和力学边界条件下进行了有限元模拟,并通过拉伸永久变形测量验证了所提出的建模方法。
Rubber components produced from nitrile butadiene rubber (NBR) are changing their material properties due to environmental influences. This is caused by irreversible changes occurring in the elastomer network which is known as chemical ageing. In this paper, ageing behaviour of NBR is investigated and modelled under the influence of different surrounding media as air and oil. Based on the previous works, in which chemical ageing was also modelled, a continuum mechanical approach is introduced here, whereby the rubber viscoelasticity is taken into account. Simulations using FEM are then carried out under different chemical and mechanical boundary conditions, and the proposed modelling approach is validated by means of tension set measurements.
DOI: --
发表时间: 1991
期刊:
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