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http://dx.doi.org/10.7473/EC.2019.54.4.313

A Correlation Between Crack Growth and Abrasion for Selected Rubber Compounds  

Lee, Hyunsang (Department of Polymer-Nano Science and Technology, Chonbuk National University, Polymer Materials Fusion Research Center)
Wang, Wonseok (Department of Polymer-Nano Science and Technology, Chonbuk National University, Polymer Materials Fusion Research Center)
Shin, Beomsu (Department of Polymer-Nano Science and Technology, Chonbuk National University, Polymer Materials Fusion Research Center)
Kang, Seong Lak (R&D Center, Kumho Petrochemical)
Gupta, Kailash Chandra (Polymer Research Laboratory, Department of Chemistry, Indian Institute of Technology)
Nah, Changwoon (Department of Polymer-Nano Science and Technology, Chonbuk National University, Polymer Materials Fusion Research Center)
Publication Information
Elastomers and Composites / v.54, no.4, 2019 , pp. 313-320 More about this Journal
Abstract
A typical wear pattern was reported to resemble the fatigue crack growth behavior considering its mechanism, especially for amorphous rubbers such as styrene-butadiene rubber (SBR). In this study, the wear and crack growth rates were correlated using two separate experiments for carbon black and silica-reinforced selected rubber compounds. The wear rate was determined using a blade-type abrasion tester, where the frictional energy input during wearing was measured. The crack propagation rate was determined under different tearing energy inputs using a home-made fatigue tester, with a pure-shear test specimen containing pre-cracks. The rates of abrasion and crack propagation were plotted on a log-log scale as a function of frictional and tearing energies, respectively. Reasonable agreement was observed, indicating that the major mechanism of the abrasion pattern involved repeated crack propagation.
Keywords
abrasion; frictional energy; crack propagation; rubber;
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