Identification of the Stress Intensity Factor of Carbon Cathode by Digital Image Correlation - Laboratoire de Mécanique des Contacts et des Structures
Communication Dans Un Congrès Année : 2017

Identification of the Stress Intensity Factor of Carbon Cathode by Digital Image Correlation

Résumé

Crack propagation in carbon cathode used in the aluminium industry has been investigated through flexural tests on notched specimens. The main parameters of interest were the geometrical evolution of the crack and the stress intensity factor at the tip ends. The latter, in the case of interfacial fracture in two-dimensional geometries, can be related to normal (mode I) and shear (mode II) stresses. In this work, a new methodology has been applied which optically measures the crack tip displacement field by Digital Image Correlation. The stress intensity factors derived from the experimental data are consistent with results available in the literature. Furthermore, the preliminary results showed that characterizing the mode I (opening) only is somehow challenging due to the heterogeneity of such carbonaceous materials.
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hal-04670819 , version 1 (20-12-2024)

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Donald Picard, Luca Sorelli, Julien Rethore, Houshang Alamdari, Marc-Antoine Baril, et al.. Identification of the Stress Intensity Factor of Carbon Cathode by Digital Image Correlation. LIGHT METALS 2017, Feb 2017, San Diego, United States. pp.1275-1280, ⟨10.1007/978-3-319-51541-0_152⟩. ⟨hal-04670819⟩
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