HYDROLYTIC AGING IN RUBBER-LIKE MATERIALS: A MICRO-MECHANICAL APPROACH TO MODELING

被引：0

作者：

Bahrololoumi, Amir ^{[1
]}

Dargazany, Roozbeh ^{[1
]}

机构：

[1] Michigan State Univ, Dept Civil & Env Eng, E Lansing, MI 48864 USA

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2019, VOL 9 | 2020年

关键词：

BIODEGRADABLE POLYMERS; DEGRADATION; EVOLUTION; TIME;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of hydrolytic aging on mechanical responses of Rubber likes materials, in particular, Mullins effect and the permanent set has been modeled. Hydrolytic aging is considered as the result of the competition between two phenomena (1) chain scission and (2) cross-link scission/reformation. Both phenomena were modeled and thus, the strain energy of the polymer matrix is written with respect to three independent mechanisms; i) the shrinking original matrix which has not been attacked by water, ii) conversion of the first network to a new network due to the reduction of the crosslinks, and iii) energy loss from network degradation due to water attacks to ester groups. The model is validated with respect to a set of experimental data. Besides accuracy, the simplicity and few numbers of fitting parameters make the model a good choice for further implementations.

引用

页数：7

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