Error Estimation of the 3D Reconstruction of a Displacement Field from DIC Measurements

To enable an accurate simulation of manufacturing processes, it is essential to characterise and model the mechanical behaviour sheet metals up large deformations. However, after onset necking, deformation becomes highly heterogeneous stress triaxial. By combining full-field measurements inverse methods, possible calibrate beyond necking. A possibility use virtual fields method, by extending its formulation a fully three-dimensional approach. measuring in bulk material still challenge. address this limitation, volume reconstruction method able estimate inside specimen was proposed successfully validated. The aim work error using simulated tensile test measurement chain associated with stereo-DIC setup composed four cameras. finite element used deform synthetically generated images. DIC field maps obtained different configurations settings are comparing reconstructed reference model. Results show that impact conditions on low.