Effect of the strain rate on damage in filled epdm during single and cyclic loadings

Autor: Maria Lluisa Maspoch, Christophe Pradille, Guillaume Corvec, Oguzhan Oguz, Nicolas Candau, Edith Peuvrel-Disdier, Jean-Luc Bouvard, Noëlle Billon
Přispěvatelé: Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. e-PLASCOM - Plàstics i Compòsits Ecològics, Centre Català del Plàstic (CCP), Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Faculty of Engineering and Natural Sciences (Sabanci University), Sabanci University [Istanbul], Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Mat Xper
Rok vydání: 2020
Předmět:
010407 polymers
Digital image correlation
Materials science
Polymers and Plastics
Polymers
fillers
02 engineering and technology
Enginyeria dels materials [Àrees temàtiques de la UPC]
01 natural sciences
Article
EPDM
Stress (mechanics)
lcsh:QD241-441
Natural rubber
lcsh:Organic chemistry
Digital Image Correlation
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
medicine
Composite material
Softening
Strain (chemistry)
self-heating
General Chemistry
Carbon black
Strain rate
021001 nanoscience & nanotechnology
0104 chemical sciences
Polímers
visual_art
infra-red thermography
visual_art.visual_art_medium
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Swelling
medicine.symptom
0210 nano-technology
damage
biomaterials
Zdroj: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Polymers
Polymers, MDPI, 2020, 12 (12), pp.3021. ⟨10.3390/polym12123021⟩
Volume 12
Issue 12
Polymers, Vol 12, Iss 3021, p 3021 (2020)
ISSN: 2073-4360
DOI: 10.3390/polym12123021⟩
Popis: 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&ndash
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.
Databáze: OpenAIRE
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