3D Elliptical Crack Depth Estimation from 2D Surface Displacement Observation

Pierre Pineau (1) , Julien Réthoré (1) , Marie-Christine Baietto (2) , Marion Fregonese (3)

1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
2 MIMESIS - Mécanique Multiéchelle pour les solides
3 MATEIS - Matériaux, ingénierie et science [Villeurbanne]

This paper presents a method to estimate the depth of an elliptical 3D crack from 2D observations on surface displacement fields. An iterative numerical procedure with leastsquares error minimisation is developped to compare pseudo-experimental displacements fields with a FEM displacement fields database and estimate crack depth.

Keywords: Finite Elements based SHM; Damage detection and localization; Feature extraction

Domains: Mechanics [physics]; Mechanics [physics.med-ph]; Statistics [math.ST]; Statistics Theory [stat.TH]

Pierre Pineau, Julien Réthoré, Marie-Christine Baietto, Marion Fregonese. 3D Elliptical Crack Depth Estimation from 2D Surface Displacement Observation. EWSHM - 7th European Workshop on Structural Health Monitoring, IFFSTTAR, Inria, Université de Nantes, Jul 2014, Nantes, France. ⟨hal-01022084⟩