Effect of the Strain Rate on Damage in Filled EPDM during Single and Cyclic Loadings

被引：13

作者：

Candau, Nicolas ^{[1
]}

Oguz, Oguzhan ^{[2
,3
,4
]}

Peuvrel-Disdier, Edith ^{[5
]}

Bouvard, Jean-Luc ^{[5
]}

Maspoch, Maria Lluisa ^{[1
]}

Corvec, Guillaume ^{[5
]}

Pradille, Christophe ^{[6
]}

Billon, Noelle ^{[5
]}

机构：

[1] Univ Politecn Cataluna, Barcelona Tech EEBE UPC, Ctr Catala Plast CCP, Av DEduard Maristany 16, Barcelona 08019, Spain

[2] Sabanci Univ, Fac Engn & Nat Sci, Mat Sci & Nano Engn, TR-34956 Istanbul, Turkey

[3] Sabanci Univ, Integrated Mfg Technol Res & Applicat Ctr, Teknopk Istanbul, TR-34906 Istanbul, Turkey

[4] Composite Technol Ctr Excellence, Teknopk Istanbul, TR-34906 Istanbul, Turkey

[5] PSL Res Univ, Mines ParisTech, CEMEF Ctr Mise Forme Mat, UMR CNRS 7635, CS 10207, F-06904 Sophia Antipolis, France

[6] Mat Xper, F-06560 Valbonne, France

来源：

POLYMERS | 2020年 / 12卷 / 12期

基金：

欧盟地平线“2020”;

关键词：

digital image correlation; damage; infra-red thermography; self-heating; EPDM; NATURAL-RUBBER; INDUCED CRYSTALLIZATION; DEFORMATION-BEHAVIOR; VOLUME CHANGES; FATIGUE LIMIT; CARBON; TEMPERATURE; RESISTIVITY; CAVITATION; DEPENDENCE;

D O I：

10.3390/polym12123021

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of the strain rate on damage in carbon black filled Ethylene Propylene Diene Monomer rubber (EPDM)stretched during single and multiple uniaxial loading is investigated. This has been performed by analyzing the stress-strain response, the evolution of damage by Digital Image Correlation (DIC), the associated dissipative heat source by InfraRed thermography (IR), and the chains network damage by swelling. The strain rates were selected to cover the transition from quasi-static to medium strain rate conditions. In single loading conditions, the increase of the strain rate yields in a preferential damage of the filler network while the rubber network is preserved. Such damage is accompanied by a stress softening and an adiabatic heat source rise. Conversely, increasing the strain rate in cyclic loading conditions yields in a filler network accommodation and a high self-heating whose combined effect is proposed as a possible cause of the ability of filled EPDM to limit damage by reducing cavities opening during loading, and favoring cavities closing upon unloading.

引用

页码：1 / 18

页数：18

共 52 条

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