Image-based isogeometric twins of lattice structures

The manuscript, which was just published in the International Journal for Numerical Methods in Engineering, is concerned with the construction of numerically efficient sample-specific digital twins for the analysis and characterization of the mechanical behavior of metamaterials such as foams and lattices. Together with Prof. Jean-Charles Passieux and Prof. Robin Bouclier from INSA Toulouse in France, a virtual image correlation method was developed which can generate an explicit, light, and analysis-suitable isogeometric beam model directly from digital images. Synthetic and real examples of increasing complexity, that is, curved beams, lattices, and foams, are presented to account for the performance of the developed workflow from digital images to an isogeometric twin for mechanical modeling and simulation.

The article is available at https://doi.org/10.1002/nme.7208