In situ synchrotron wide-angle X-ray diffraction investigation of fatigue cracks in natural rubber

Abstract : Natural rubber exhibits remarkable mechanical fatigue properties usually attributed to strain-induced crystallization. To investigate this phenomenon, an original experimental setup that couples synchrotron radiation with a homemade fatigue machine has been developed. Diffraction-pattern recording is synchronized with cyclic loading in order to obtain spatial distributions of crystallinity in the sample at prescribed times of the mechanical cycles. Then, real-time measurement of crystallinity is permitted during uninterrupted fatigue experiments. First results demonstrate the relevance of the method: the setup is successfully used to measure the crystallinity distribution around a fatigue crack tip in a carbon black filled natural rubber for different loading conditions.
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Journal of Synchrotron Radiation, International Union of Crystallography, 2013, 20, pp.105-109. 〈10.1107/S0909049512044457〉
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Dernière modification le : mardi 24 octobre 2017 - 14:02:03

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Pierre Rublon, Bertrand Huneau, Nicolas Saintier, Stéphanie Beurrot, Adrien Leygue, et al.. In situ synchrotron wide-angle X-ray diffraction investigation of fatigue cracks in natural rubber. Journal of Synchrotron Radiation, International Union of Crystallography, 2013, 20, pp.105-109. 〈10.1107/S0909049512044457〉. 〈hal-01006961〉

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