Importance de la cavitation lors de la fissuration en fatigue du caoutchouc naturel chargé / Cavitation influence on fatigue crack growth in filled natural rubber
In: Mécanique & industries, Jg. 7 (2006), Heft 2, S. 123-129
Online
academicJournal
- print, 14 ref
Zugriff:
Cavitation influence on fatigue crack growth in filled natural rubber. The aim of this present paper is the fractographic analysis of cracks in a carbon black filled natural rubber under fatigue loading conditions. In order to determine the crack growth mechanism, the microstructural state behind the crack tip should be analysed. Here, an experimental method that consists in cutting the crack tip during its observation with a scanning electron microscope is proposed. The crack tip opening is performed using two different energetic sources in order to break cross-links between the macromolecules. The first source is mechanical: the sample is stretched on a simple tensile apparatus. The second one is the electronic beam. Observation results indicate that cavitation is the fatigue damage which drives crack growth. The cavitation mechanism is initiated by the decohesion of the oxides and rubber matrix.
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Importance de la cavitation lors de la fissuration en fatigue du caoutchouc naturel chargé / Cavitation influence on fatigue crack growth in filled natural rubber
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Autor/in / Beteiligte Person: | LE CAM, Jean-Benoit ; PEROCHEAU, Franck ; HUNEAU, Bertrand ; VERRON, Erwan ; GORNET, Laurent |
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Zeitschrift: | Mécanique & industries, Jg. 7 (2006), Heft 2, S. 123-129 |
Veröffentlichung: | Paris: Elsevier, 2006 |
Medientyp: | academicJournal |
Umfang: | print, 14 ref |
ISSN: | 1296-2139 (print) |
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