Digital image stereo-correlation applied to the identification of elastomers

Marina Fazzini (1) , Sebastien Mistou (1) , Moussa Karama (1) , Bruno Desmars (2)

1 LGP - Laboratoire Génie de Production
2 AST - Astrium Space Transportation

As a complement to classic characterization in the identification of elastomers, full-field measurement methods such as image stereo correlation can undeniably contribute to the validation of elastomeric connection behaviour. Indeed, these measurements enable three-dimensional displacement and strains fields over the totality of the studied surface to be finely reached. Characterization tests in shearing on an elastomer were followed by image stereocorrelation up to high strain levels. The experimental results could thus be confronted with theoretical results using an Alexander hyperelastic behaviour law, which enabled the relevance of this law to be validated locally.

Mots clés: Edge effects; Elastomer; Full field measurement; Hyperelasticity; Large strain; Quadruple shearing; Stereo correlation

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Marina Fazzini, Sebastien Mistou, Moussa Karama, Bruno Desmars. Digital image stereo-correlation applied to the identification of elastomers. Advanced Materials Research, 2010, vol. 112, pp. 103-112. ⟨10.4028/www.scientific.net/AMR.112.103⟩. ⟨hal-00840549⟩