Identification of a Damage Law by Using Full-Field Displacement Measurements

Damien Claire (1, 2) , François Hild (1) , Stéphane Roux (2)

1 LMT - Laboratoire de Mécanique et Technologie
2 SVI - Surface du Verre et Interfaces

It is proposed to identify damage variables and their growth with loading in two dimensions by only using full-field displacement measurements. The equilibrium gap method is used to estimate the damage field during a biaxial experiment on a sample made of a composite material. From the analysis of a sequence of measurements, a proposed form of constitutive law is tested and identified. The emphasis is put on the methodology that can be applied to a vast class of materials.

Mots clés: Photomechanics

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

Damien Claire, François Hild, Stéphane Roux. Identification of a Damage Law by Using Full-Field Displacement Measurements. International Journal of Damage Mechanics, 2007, 16 (2), pp.179-197. ⟨10.1177/1056789506064940⟩. ⟨hal-00013813⟩