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Finite Element Stereo Digital Image Correlation: Framework and Mechanical Regularization

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Academic year: 2021

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Figure

Fig. 1 Main steps of a 3D displacement field measurement of a surface with classical Stereo- Stereo-Digital Image Correlation
Fig. 2 Steps of the new Stereo-DIC formulation with a Finite-Element mesh (FE-SDIC):
Fig. 3 Illustration of the ill-posed problem of shape measurement. (a) Theoretical position of the mesh after calibration and shape measurement
Fig. 4 3D displacement measurement in Stereo-DIC with a finite element based method (FE- (FE-SDIC)        M c,k dic,ij = Z Ω N Ti (∇P c ∇f c ) (∇P c ∇f c ) T N j dX b c,k dic,i = Z Ω N Ti (∇P c ∇f c )  f c (P c (X, p c )) − g c (P c (X + U k , p c )
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