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Fracture behavior of crumb rubber-filled elastomers

✍ Scribed by Jin Kuk Kim

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
312 KB
Volume
74
Category
Article
ISSN
0021-8995

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✦ Synopsis

The fracture behavior of a crumb rubber-filled elastomer was observed in optical micrographs. It was found that the failure started from the surface of the unfilled samples. The failure, however, started from a cavity around a crumb in the crumb-filled samples. This paper suggests that the failure mechanism in the crumbfilled elastomers (NR, NBR) was based on the microscopic observation of highly strained samples. This paper also considers the failure behavior of two-component systems: NR/NBR, SBR/NR, and NR/SBR.

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The energetics and micromechanisms of fracture in model dynamically vulcanized thermoplastic elastomers have been studied. Their fracture toughness values have been quantified under mode 1 loading conditions using both the critical J-integral approach and an essential work-of-fracture method. Additi