Substructure-sensitive crystal plasticity with material-invariant parameters

• DOI: 10.1016/j.ijplas.2022.103306
• Publication Date: 2022-04-27T01:50:42Z
• Authors: Shahram Dindarlou; Gustavo M. Castel...
• Keywords: Substructure; Crystal Plasticity

Even though crystal plasticity models have been available for decades, the quantification of material parameters is still a matter debate. Polycrystalline experimental results can normally be reproduced by multiple sets parameters, raising concerns about best parameterization to predict grain-level response. This work presents novel physics-based model based on mesoscale dislocation substructures, which are used characterize independently. We employ unique set with known uncertainty reproduce mechanical response FCC single- and poly-crystals. demonstrate that material-invariant metals similar substructures such as Cu, Ni Al. Furthermore, validated comparing poly-crystalline stress–strain curves substructure images. modeling approach intrinsically designed materials without need single data calibration.