RUBBER WEAR AND ITS CONSEQUENCES: Fracture Mechanics, Gases, and Particle Emissions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63601318" target="_blank" >RIV/70883521:28610/25:63601318 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

RUBBER WEAR AND ITS CONSEQUENCES: Fracture Mechanics, Gases, and Particle Emissions

Popis výsledku v původním jazyce

Rubber wear in tires is governed by fracture-mechanical processes controlling crack initiation, crack propagation, and material detachment at the surface and in the near-surface region. These processes determine not only tire durability and performance, but also the formation of wear particles and the release of gaseous species generated during cyclic deformation and crack growth.Under dynamic loading, highly strained regions at crack tips experience localized heating, bond scission, oxidative reactions, and mechanochemical degradation. These phenomena contribute both to particle detachment and to the emission of volatile compounds. Gas diffusion into and out of cracks further influences crack-tip mechanics, energy dissipation, and damage evolution, thereby coupling fracture behaviour with emission processes.Conventional laboratory tests often fail to reproduce the complex thermo-mechanical loading and environmental interactions occurring in real tire service, limiting their predictive capability. This presentation introduces a fracture-mechanics framework that links crack growth kinetics, wear particle formation, and gas emission processes.Novel experimental methods and advanced measurement techniques are presented that enable controlled characterization of crack propagation, particle generation, and associated gaseous emissions. The results demonstrate how fracture-mechanics-based testing significantly improves the prediction of tire wear, service life, and environmental impact.

Název v anglickém jazyce

RUBBER WEAR AND ITS CONSEQUENCES: Fracture Mechanics, Gases, and Particle Emissions

Popis výsledku anglicky

Rubber wear in tires is governed by fracture-mechanical processes controlling crack initiation, crack propagation, and material detachment at the surface and in the near-surface region. These processes determine not only tire durability and performance, but also the formation of wear particles and the release of gaseous species generated during cyclic deformation and crack growth.Under dynamic loading, highly strained regions at crack tips experience localized heating, bond scission, oxidative reactions, and mechanochemical degradation. These phenomena contribute both to particle detachment and to the emission of volatile compounds. Gas diffusion into and out of cracks further influences crack-tip mechanics, energy dissipation, and damage evolution, thereby coupling fracture behaviour with emission processes.Conventional laboratory tests often fail to reproduce the complex thermo-mechanical loading and environmental interactions occurring in real tire service, limiting their predictive capability. This presentation introduces a fracture-mechanics framework that links crack growth kinetics, wear particle formation, and gas emission processes.Novel experimental methods and advanced measurement techniques are presented that enable controlled characterization of crack propagation, particle generation, and associated gaseous emissions. The results demonstrate how fracture-mechanics-based testing significantly improves the prediction of tire wear, service life, and environmental impact.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů