Mona Lisa saved by the Griffith theory: Assessing the crack propagation risk in the wooden support of a panel painting - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2006

Mona Lisa saved by the Griffith theory: Assessing the crack propagation risk in the wooden support of a panel painting

Résumé

A 2D finite elements model of the wooden support of Mona Lisa painting was developed to estimate the risk of propagation of the existing crack due to the restraining action of the frame, using observations on the wood structire and panel geometry and measurements of the forces exerted by the crossbars on the panel. A good agreement was obtained with shadow Moiré data of the displacement field. According to the simulations, the frame applies a small tearing and a slight opening of the crack lips; the calculated release energy rate is far below the critical values, suggesting practically no propagation risk, even accounting for the effet of hygrothermal fluctuations.
Fichier principal
Vignette du fichier
ESWM4_Gril.pdf (1.22 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00322180 , version 1 (05-02-2024)

Identifiants

  • HAL Id : hal-00322180 , version 1
  • PRODINRA : 250492

Citer

Joseph Gril, Elisabeth Ravaud, Luca Uzielli, Jean-Christophe Dupré, Patrick Perre, et al.. Mona Lisa saved by the Griffith theory: Assessing the crack propagation risk in the wooden support of a panel painting. International Conference on Integrated Approach to Wood Structure, Behavior and Applications, May 2006, Firenze, Italy. pp.1-6. ⟨hal-00322180⟩
373 Consultations
4 Téléchargements

Partager

Gmail Facebook X LinkedIn More