有知道佩恩（Payen）效应的吗

中级工

经常在轮胎配方的文献中见到“佩恩效应”，但不知其确切定义以及如何测定。

白菜大梆子

The Payne effect is a particular feature of the stress-strain behaviour of rubber, especially rubber compounds containing fillers such as carbon black. It is named after the British rubber scientist A. R. Payne, who made extensive studies of the effect (e.g. Payne 1962). The effect is sometimes also known as the Fletcher-Gent effect, after the authors of the first study of the phenomenon (Fletcher & Gent 1953). The effect is observed under cyclic loading conditions with small strain amplitudes, and is manifest as a dependence of the viscoelastic storage modulus on the amplitude of the applied strain. Above approximately 0.1% strain amplitude, the storage modulus decreases rapidly with increasing amplitude. At sufficiently large strain amplitudes (roughly 20%), the storage modulus approaches a lower bound. In that region where the storage modulus decreases the loss modulus shows a maximum. The Payne effect depends on the filler content of the material and vanishes for unfilled elastomers. Physically, the Payne effect can be attributed to deformation-induced changes in the material's microstructure, i.e. to breakage and recovery of weak physical bonds linking adjacent filler clusters. Since the Payne effect is essential for the frequency and amplitude-dependent dynamic stiffness and damping behaviour of rubber bushings, automotive tyres and other products, constitutive models to represent it have been developed in the past (e.g. Lion et al. 2003). Similar to the Payne effect under small deformations is the Mullins effect that is observed under large deformations

hegz73

说的简单点，就是检测橡胶和炭黑的结合程度的一种描述方式！佩恩效应越小，结合的越紧密！

白菜大梆子

关于佩恩效应，网内有高人。

白菜大梆子

Panye效应只对含有填料（比如CB）的橡胶起作用，它的名称来源于英国橡胶学家A.R.Panye，他对这一效应进行了广泛的研究（比如Payne 1962）。这一效应有时也称为Fletcher-Gent效应，源于首次对这一现象进行研究的两位作者（Fletcher & Gent 1953）。
# y. W3 Y, R# ~2 A1 v6 e      Panye效应是在小振幅循环载荷条件下产生的，表示的是橡胶粘弹储存模量对所施加应力振幅的依赖性。在应力振幅在大约0.1%以上时，储存模量会随着振幅的增加而迅速下降；在应力振幅足够大（大概20%）时，储存模量达到一个下限值；在储存模量降低的区域，损失模量出现最大值。
      这一效应取决于材料中的填料含量，对于未填充弹性体则不起作用。从物理变化的角度，这个Payne效应可以归因于材料微观结构的变形诱导变化，也就是说填料团簇附近弱物理键的破坏和修复过程。由于Payne效应从本质上是橡胶弹性元件、汽车轮胎及其他产品中由频率和振幅所决定的动态稳定和阻尼行为，过去已经发展出了一些构建模型来构建这一效应 （比如Lion等人2003年的成果）。
       与小形变下的Payne效应类似，大形变下所观察到的现象称为Mulins效应。
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抛砖引玉一下。。。

中级工

学习了，谢谢！但还是不太“解渴".

白菜大梆子

因为真正的行家还没出来呢！~~~

lenwenq

您是搞减震的吗？

dasher

《火影忍者》里的一个BOSS

初级炼胶工

学习了，平时也搞一些橡胶弹簧，桥梁支座什么的，都是参照标准，原来还有这回事。