On the analysis of notched concrete beams: From measurement with Digital Image Correlation to identification with Boundary Element Method of a cohesive model

Abstract : A way of coupling digital image correlation (to measure displacement fields) and boundary element method (to compute displacements and tractions along a crack surface) is presented herein. It allows for the identification of Young's modulus and fracture parameters associated with a cohesive model. This procedure is illustrated to analyze the latter for an ordinary concrete in a three-point bend test on a notched beam. In view of measurement uncertainties, the results are deemed trustworthy thanks to the fact that numerous measurement points are accessible and used as entries to the identification procedure.
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Manuel Ferreira, Wilson Venturini, François Hild. On the analysis of notched concrete beams: From measurement with Digital Image Correlation to identification with Boundary Element Method of a cohesive model. Engineering Fracture Mechanics, Elsevier, 2011, 78, pp.71-84. ⟨10.1016/j.engfracmech.2010.10.008⟩. ⟨hal-00614875⟩

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