A new experimental approach to rubber resistance against cutting by sharp objects

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F15%3A43874356" target="_blank" >RIV/70883521:28610/15:43874356 - 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

A new experimental approach to rubber resistance against cutting by sharp objects

Popis výsledku v původním jazyce

The present paper proposes a new fracture experimental approach to rubber resistance against cutting by sharp objects based on newly developed instrumental testing equipment. In this work the effect of cutting velocity 25 and 100 mm DOT OPERATOR   minMINUS SIGN 1 on varied pre-force 50 and 100 N cured rubber test specimens based on NR/BR/SBR blends has been studied. The experimental approach represents an application of cutting implement (razor blade) to the tip of a crack in a time-dependent stretched test specimen. The fracture mechanic's phenomena has been based on the definition of test specimen geometry with respect to the geometry ratio L0/W (Length/Width) = 1/8, whereas the common pure-shear test specimens have been used for the study. For lower cutting velocity, there also were found lower tearing energies at fracture process, which seems to be very important parameter. As a specific result we introduce the relationship between elastic energy of crack initiation in dependence on cutting velocity and crack length.

Název v anglickém jazyce

A new experimental approach to rubber resistance against cutting by sharp objects

Popis výsledku anglicky

The present paper proposes a new fracture experimental approach to rubber resistance against cutting by sharp objects based on newly developed instrumental testing equipment. In this work the effect of cutting velocity 25 and 100 mm DOT OPERATOR   minMINUS SIGN 1 on varied pre-force 50 and 100 N cured rubber test specimens based on NR/BR/SBR blends has been studied. The experimental approach represents an application of cutting implement (razor blade) to the tip of a crack in a time-dependent stretched test specimen. The fracture mechanic's phenomena has been based on the definition of test specimen geometry with respect to the geometry ratio L0/W (Length/Width) = 1/8, whereas the common pure-shear test specimens have been used for the study. For lower cutting velocity, there also were found lower tearing energies at fracture process, which seems to be very important parameter. As a specific result we introduce the relationship between elastic energy of crack initiation in dependence on cutting velocity and crack length.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Constitutive Models for Rubber IX - Proceedings of the 9th European Conference on Constitutive Models for Rubbers, ECCMR

ISBN

978-1-138-02873-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

357-362

Název nakladatele

CRC Press Balkema publishers

Místo vydání

Leiden

Místo konání akce

Praha

Datum konání akce

1. 9. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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