An original experimental approach showing that most nonlinearities expressed by filled elastomers relate to microscopic friction and cavitation

Picquart Marion; Poirey Gilles; Puel Guillaume; Aubry Denis

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An original experimental approach showing that most nonlinearities expressed by filled elastomers relate to microscopic friction and cavitation

机译：一种原始的实验方法，显示由填充弹性体表示的大多数非线性涉及微观摩擦和空化

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摘要

Filled elastomers present a highly nonlinear behavior when submitted to cyclic mechanical loads. Origins of these nonlinearities are still uncertain, but many models rely on micromechanisms such as friction or cavitation at the filler/binder interface. To substantiate these hypotheses, an experimental approach is proposed to assess the real effects of friction and cavitation on the macroscopic response of filled elastomers. A linear, viscoelastic, transparent material is used to create macroscopic samples in which mechanisms are activated, separately or jointly. The response of these samples to cyclic mechanical loads shows that each mechanism generates some typical nonlinearities. A deeper analysis of the resulting curves allows a correlation between the nonlinearities characteristics (shapes and amplitudes) and the ones expressed by filled elastomers, providing clues for the development of future models.

机译：填充弹性体在承受循环机械载荷时呈现高度非线性行为。这些非线性的起源仍然不确定，但许多模型依赖于微观机制，如填料/粘合剂界面处的摩擦或空化。为了证实这些假设，提出了一种实验方法来评估摩擦和空化对填充弹性体宏观响应的实际影响。一种线性、粘弹性、透明的材料被用来制作宏观样品，其中机制被单独或联合激活。这些样品对循环机械载荷的响应表明，每种机制都会产生一些典型的非线性。通过对所得曲线的深入分析，可以发现非线性特征（形状和振幅）与填充弹性体所表达的非线性特征之间的相关性，为未来模型的开发提供线索。

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来源
《Journal of Applied Polymer Science》 |2021年第10期|共13页
作者
Picquart Marion; Poirey Gilles; Puel Guillaume; Aubry Denis;
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作者单位

ArianeGroup 9 Rue Lavoisier Vert Le Petit France;

ArianeGroup 9 Rue Lavoisier Vert Le Petit France;

Univ Paris Saclay Cent Supelec CNRS Lab Mecan Sols Struct &

Mat 3 Rue Joliot Curie F-91190 Gif Sur Yvette France;

Univ Paris Saclay Cent Supelec CNRS Lab Mecan Sols Struct &

Mat 3 Rue Joliot Curie F-91190 Gif Sur Yvette France;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
composites; filled elastomers; mechanical properties; viscosity; viscoelasticity;

机译：复合材料;填充弹性体;机械性能;粘度;粘性;

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An original experimental approach showing that most nonlinearities expressed by filled elastomers relate to microscopic friction and cavitation

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