Open AccessIn situ synchrotron wide‐angle X‐ray diffraction investigation of fatigue cracks in natural rubber
Author(s) -
Rublon Pierre,
Huneau Bertrand,
Saintier Nicolas,
Beurrot Stéphanie,
Leygue Adrien,
Verron Erwan,
Mocuta Cristian,
Thiaudière Dominique,
Berghezan Daniel
Publication year - 2013
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049512044457
Subject(s) - crystallinity , natural rubber , materials science , synchrotron radiation , synchrotron , composite material , diffraction , natural frequency , optics , physics , acoustics , vibration
Natural rubber exhibits remarkable mechanical fatigue properties usually attributed to strain‐induced crystallization. To investigate this phenomenon, an original experimental set‐up 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 set‐up is successfully used to measure the crystallinity distribution around a fatigue crack tip in a carbon black filled natural rubber for different loading conditions.