A new attempt to reconcile the statistical and phenomenological theories of rubber elasticity
A new attempt to reconcile the statistical and phenomenological theories of rubber elasticity
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DOI：
10.1002/(sici)1099-0488(19970915)35:12
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发表时间：
1997-09-15
影响因子：
--
通讯作者：
Fleming, PD
中科院分区：
文献类型：
--
作者：
Yeoh, OH;Fleming, PD
简要回顾了橡胶弹性的统计和唯象理论。结合 Yeoh 和 Gent 最近提出的概念，提出了一种新理论。所提出的橡胶硫化橡胶本构模型涉及两种机制；一种影响小应变下的行为，而另一种则主导大应变下的行为。网络缺陷，例如纠缠，被怀疑是第一种机制的原因。网络链的有限可扩展性被认为是第二个原因。因此，宏观行为与分子概念直接相关。所提出的理论允许通过仅来自一个成员的拉伸数据的回归分析来预测一系列四种橡胶硫化橡胶在不同变形模式（简单延伸、压缩和简单剪切）下的应力应变行为。 (C) 1997 约翰威利父子公司
The statistical and phenomenological theories of rubber elasticity are reviewed briefly. Combining recent concepts proposed by Yeoh and Gent, a new theory is proposed. The proposed constitutive model for rubber vulcanizates invokes two mechanisms; one influences behavior at small strains while the other dominates behavior at large strains. Network flaws, such as entanglements, are suspected to be responsible for the first mechanism. Finite extensibility of network chains is identified as the cause of the second. Thus, macroscopic behavior is directly linked to molecular concepts. The proposed theory allows prediction of the stress-strain behavior of a family of four rubber vulcanizates in different modes of deformation (simple extension, compression, and simple shear) from regression analysis of tensile data alone from just one member. (C) 1997 John Wiley & Sons, Inc.