Time-dependent fracture in vulcanized elastomers

Lake, G. J.; Samsuri, Ariffin; Teo, Siew Cheng; Vaja, J.

doi:10.1016/0032-3861(91)90194-n

Cited by 20 publications

(19 citation statements)

References 30 publications

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“…Natural rubber (NR), obtained from Hevea brasiliensis, shows outstanding strength 1,2 and tack 1 in the unvulcanized state and high tensile strength, 3 and crack growth resistance 4,5 in the vulcanized state. This is explained to be due to its rapid crystallizability on straining.…”

Section: Introductionmentioning

confidence: 99%

Crystallization behavior and strength of natural rubber: Skim rubber, deproteinized natural rubber, and pale crepe

Kawahara

Kubo

Nishiyama

et al. 2000

J. Appl. Polym. Sci.

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Section: Introductionmentioning

confidence: 99%

Crystallization behavior and strength of natural rubber: Skim rubber, deproteinized natural rubber, and pale crepe

Kawahara

Kubo

Nishiyama

et al. 2000

J. Appl. Polym. Sci.

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“…The applicability of the principles of fracture mechanics to elastomers has been established [5][6][7], the time-dependent characteristics of elastomer fracture have been examined [8,9], and crack speeds under varying degrees of biaxial strain have been investigated [10,11]. None of these studies, however, has explored the transition from a straight to a wavy crack path.…”

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confidence: 99%

Oscillating Fracture Paths in Rubber

et al. 2001

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“…In certain carbon black filled non-crystallizing rubbers, anisotropic structures may form at the crack tip, through alignment of aggregates, leading to increased fatigue resistance, similar to what is found for crystallizing rubbers. [31] However, this alignment of aggregates is hindered through cluster overlap at larger concentrations j> j c and, therefore, it becomes much less effective. Additionally, with increasing filler loading, more and more aggregates must be attributed to the (infinite) filler network that also cannot be aligned.…”

Section: Resultsmentioning

confidence: 99%

Toughness Optimization of SBR Elastomers – Use of Fracture Mechanics Methods for Characterization

Reincke

Grellmann

Lach

et al. 2003

Macro Materials & Eng

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Elastomer materials are used in a wide application range and subjected to different loading from which failure of the material results. Because this failure is caused by initiation and propagation of cracks, the application of fracture mechanics methods for the assessment of the material is obvious. A short summary of the methods of technical fracture mechanics including possibilities of determination of crack resistance curves is given. Vulcanizates on the basis of SBR 1500 with various sulfur and carbon black contents were investigated. For describing the crack initiation and crack propagation behavior, several fracture mechanics examination methods were applied. Tear‐analyzer results were used to assess the crack propagation behavior under fatigue‐like loading conditions. Furthermore, for the characterization of the crack resistance of the materials under impact‐like loading conditions, instrumented tensile‐impact tests were performed. To obtain information about the initiation and propagation of a stable crack, quasi‐static fracture mechanics tests were applied. The results of the several tests are discussed in dependence on sulfur and carbon black contents. We found a non‐monotonous behavior of the toughness as a function of carbon black loading. An explanation is given in connection with a percolation‐like transition in filler morphology on larger length scales. Schematic crack propagation curve for characterizing the fatigue behavior of the vulcanizates recorded in a TFA test.magnified imageSchematic crack propagation curve for characterizing the fatigue behavior of the vulcanizates recorded in a TFA test.

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Time-dependent fracture in vulcanized elastomers

Cited by 20 publications

References 30 publications

Crystallization behavior and strength of natural rubber: Skim rubber, deproteinized natural rubber, and pale crepe

Crystallization behavior and strength of natural rubber: Skim rubber, deproteinized natural rubber, and pale crepe

Oscillating Fracture Paths in Rubber

Toughness Optimization of SBR Elastomers – Use of Fracture Mechanics Methods for Characterization

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