Crack growth of natural rubber using a modified double cantilever beam

The objective of this work is to investigate the crack growth properties of a natural rubber vulcanizate. This work utilizes a modified double cantilever beam (DCB) for measuring the crack propagation in natural rubber. Results of the crack growth in the plane strain dominated DCB are presented and...

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Bibliographic Details
Published in:Mechanics of materials 2002-08, Vol.34 (8), p.451-458
Main Authors: South, Joseph T, Case, Scott W, Reifsnider, Kenneth L
Format: Article
Language:English
Subjects:
Applied sciences
Crack growth
Double cantilever beam
Elastomer
Exact sciences and technology
Fatigue
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Natural polymers
Natural rubber
Physicochemistry of polymers
Physics
Solid mechanics
Structural and continuum mechanics
Tire
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Summary:The objective of this work is to investigate the crack growth properties of a natural rubber vulcanizate. This work utilizes a modified double cantilever beam (DCB) for measuring the crack propagation in natural rubber. Results of the crack growth in the plane strain dominated DCB are presented and compared to results from plane stress single edge notch test specimens. It is found that the crack growth rate in natural rubber under plane strain conditions is one hundred times faster than under plane stress. The failure surface of the DCB is examined for cavitation occurring within the rubber due to high hydrostatic pressure. No evidence of cavitation was found.
ISSN:0167-6636
1872-7743
DOI:10.1016/S0167-6636(02)00173-4