Modal characterization of crack network development in an MgO containing refractory castable - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Strain Analysis for Engineering Design Année : 2023

Modal characterization of crack network development in an MgO containing refractory castable

Résumé

Damage due to MgO hydration in castables has been studied by bar resonance and recently by Digital Image Correlation (DIC). The hydration reaction kinetics was studied via principal component analyses (PCA) applied to DIC results of images acquired during 60 h of curing and drying of an MgO containing refractory castable. The experiment was carried out in a in-house climatic chamber at 50 • C and 50% of relative air humidity. The displacement and maximum eigen strain fields were obtained via DIC. Their PCA revealed the crack network as the most relevant component, with a temporal development of a sigmoidal curve where a two-parameter Weibull law was satisfactorily fitted. The reaction duration was virtually identical for both fields, and only a time shift in reaction initiation and saturation was attributed to the choice of field. The approach allows the need for user-defined thresholds to be avoided for crack quantification.
Fichier principal
Vignette du fichier
JSA2023-ccsd.pdf (14.09 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03956964 , version 1 (25-01-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Vinicius Fiocco Sciuti, Rafael Vargas, Rodrigo Bresciani Canto, François Hild. Modal characterization of crack network development in an MgO containing refractory castable. Journal of Strain Analysis for Engineering Design, 2023, 58 (6), pp.490-500. ⟨10.1177/03093247221141490⟩. ⟨hal-03956964⟩
20 Consultations
7 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More