- A complete methodology for the mechanical diagnosis of statue provided by innovative uses of 3D model. Application to the imperial marble statue of Alba-la-Romaine (France) doi link

Auteur(s): Bagneris M., Cherblanc F., Bromblet Philippe, Gattet Eloi, Gügi Léonard, Nony Nicolas, Mercurio Vincent, Pamart Anthony

(Article) Publié: Journal Of Cultural Heritage, vol. 28 p.109-116 (2017)

Ref HAL: hal-01529338_v1
DOI: 10.1016/j.culher.2017.05.002
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A multidisciplinary methodology is presented to assess the mechanical behaviour of a marble statue with complex fracture plans and localized cracks. Firstly, a 3D model is generated by photogrammetry. Its underlying geometrical data provide valuable insight for the physical characterisation and the numerical analysis. Indeed, the ultrasound analysis, which is usually impossible on such a complex shape, is achieved thanks to the accurate measures of distance between transmitter and receiver obtained from the 3D geometrical model. Finally, an innovative use of FEM/DEM analysis is proposed to evaluate the mechanical relevance of a non-destructive basing system. Reflecting the advances of this collective work, the resulting pedestal solution is non-conventional since it is safe, not invasive and totally reversible. A particular attention is paid to use mainly open-source numerical tools from 3D acquisition through mechanical analysis in order to enable the reproducibility of the process.

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