Abstract
Abstract
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.
Funder
National Science Foundation
Subject
Computer Science Applications,Mechanics of Materials,Condensed Matter Physics,General Materials Science,Modeling and Simulation