A rigorous methodology is developed for computing elastic fields generated by experimentally observed defect structures within grains in a polycrystal that has undergone tensile extension. An example application is made using a near-field High Energy X-ray Diffraction Microscope measurement of a zirconium sample that underwent 13.6% tensile extension from an initially well-annealed state. (Sub)grain boundary features are identified with apparent disclination line defects in them. The elastic fields of these features identified from the experiment are calculated.
@article{arxiv.2305.16454,
title = {Modeling of experimentally observed topological defects inside bulk polycrystals},
author = {Siddharth Singh and He Liu and Rajat Arora and Robert M. Suter and Amit Acharya},
journal= {arXiv preprint arXiv:2305.16454},
year = {2023}
}