Applicability of image correlation techniques to characterise asymmetric refractory creep during bending tests

Gilles Dusserre 1 F. Nazaret 2 Laurent Robert 1 Thierry Cutard 1
1 ICA - Institut Clément Ader
2 Aurock
Abstract : The design of fibre reinforced refractory castable structures for high temperature applications requires the characterisation of the material creep behaviour. As many other heterogeneous ceramics, these materials creep faster under tensile stresses than under compressive ones because of the motion of hard particles in a soft matrix. Bending tests have been performed to characterise the creep behaviour of the considered material, and 3D digital image correlation is used to obtain strain fields after interrupted tests. The position of the neutral axis, defined here from the residual inelastic strain field, allows to highlight the asymmetry of creep and to evaluate the asymmetry ratio.
Keywords : Creep Refractories Mechanical properties Asymmetry tension-compression 3D Digital Image Correlation
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Journal articles
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Contributor : Imt Mines Albi Ecole Nationale Supérieure Des Mines d'Albi-Carmaux <>
Submitted on : Thursday, October 25, 2018 - 2:49:05 PM
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Gilles Dusserre, F. Nazaret, Laurent Robert, Thierry Cutard. Applicability of image correlation techniques to characterise asymmetric refractory creep during bending tests. Journal of the European Ceramic Society, Elsevier, 2013, 33 (2), pp.221-231. ⟨10.1016/j.jeurceramsoc.2012.09.011⟩. ⟨hal-01687319⟩

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