Innovative Heat Build-Up Characterisation of Rubber under Realistic Load

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Innovative Heat Build-Up Characterisation of Rubber under Realistic Load

Popis výsledku v původním jazyce

Rubber products (RPs) are exposed to multiaxial dynamic loading during service. Many RPs such as engine mounts, bushings, rubber pads, belts, tires, etc. serve as damping and wear parts. In rubber materials and thus in RPs energy transforms into heat because of dissipative processes. This leads to heat build-up (HBU), which influences dynamic as well as fracture behavior and wear thus in turn performance and durability of RPs. This paper describes the experimental measurement of HBU in a novel laboratory test to characterize frictionless in-situ the heat build-up (HBU) process inside of rubber sample. In this study, firstly the HBU for fundamental carbon black (CB) filled rubber compounds based on pristine natural rubber (NR), styrene butadiene rubber (SBR) and butadiene rubber (BR) has been investigated, where the expected ranking of the HBU, SBR &gt; NR &gt; BR from highest to lowest has been observed. As next series of rubber compounds applied for multi-purpose tire (MPT) have been investigated and HBU behavior were discussed. Characterizing HBU in a laboratory test set-up promises to gain valuable information of the material in an early stage of part development before RPs have been produced or even before designs are finalized. This approach promises to optimize RPs in terms of performance and durability. Further, it enables to fasten development times and minimize extensive field tests.

Název v anglickém jazyce

Innovative Heat Build-Up Characterisation of Rubber under Realistic Load

Popis výsledku anglicky

Rubber products (RPs) are exposed to multiaxial dynamic loading during service. Many RPs such as engine mounts, bushings, rubber pads, belts, tires, etc. serve as damping and wear parts. In rubber materials and thus in RPs energy transforms into heat because of dissipative processes. This leads to heat build-up (HBU), which influences dynamic as well as fracture behavior and wear thus in turn performance and durability of RPs. This paper describes the experimental measurement of HBU in a novel laboratory test to characterize frictionless in-situ the heat build-up (HBU) process inside of rubber sample. In this study, firstly the HBU for fundamental carbon black (CB) filled rubber compounds based on pristine natural rubber (NR), styrene butadiene rubber (SBR) and butadiene rubber (BR) has been investigated, where the expected ranking of the HBU, SBR &gt; NR &gt; BR from highest to lowest has been observed. As next series of rubber compounds applied for multi-purpose tire (MPT) have been investigated and HBU behavior were discussed. Characterizing HBU in a laboratory test set-up promises to gain valuable information of the material in an early stage of part development before RPs have been produced or even before designs are finalized. This approach promises to optimize RPs in terms of performance and durability. Further, it enables to fasten development times and minimize extensive field tests.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10404 - Polymer science

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

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