My research goal is to elucidate the multi-scale deformation related phenomena in inelastically deforming materials using an effort combining theoretical and empirical components. A robust understanding of such phenomena can accelerate material discovery and component design.
Deformation response of metals can be complex due to the presence of multiple deformation modes - slip, phase transformation, twinning and other aspects like interaction between the grains, anisotropic mechanical properties and complex loading paths. Microstructural modeling can elucidate the fundamental phenomena defining deformation patterns. Macro scale modeling can provide fast and robust tools to aid in component design process while accounting for the complex deformation mechanisms.
Synchrotron X-ray diffraction based techniques can quantify deformation and structure of metals at multiple length scales. E.g. μXRD can reveal intragranular orientation spread and strains, HEDM can provide grain-scale statistics of orientation and lattice strains and powder diffraction can provide component-scale texture and strains. These techniques together are ideal to inform and validate multi-scale numerical models.