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Article Dans Une Revue International Journal of Fracture Année : 2006

Stress intensity factor measurements from digital image correlation: post-processing and integrated approaches

Stéphane Roux
François Hild

Résumé

Digital image correlation is an appealing technique for studying crack propagation in brittle materials such as ceramics. A case study is discussed where the crack geometry, and the crack opening displacement are evaluated from image correlation by following two different measurement and identification routes. The displacement uncertainty can reach the nanometer range even though optical pictures are dealt with. The stress intensity factor is estimated with a 7% uncertainty in a complex loading set-up without having to resort to a numerical modelling of the experiment.
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Dates et versions

hal-00013818 , version 1 (14-11-2005)

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Stéphane Roux, François Hild. Stress intensity factor measurements from digital image correlation: post-processing and integrated approaches. International Journal of Fracture, 2006, 140 (1-4), pp.141-157. ⟨10.1007/s10704-006-6631-2⟩. ⟨hal-00013818⟩
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