Elastic wave propagation in anisotropic polycrystals:inferring physical properties of glacier ice

• Published in: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
• Main Authors: Rathmann, Nicholas M. M., Grinsted, Aslak, Mosegaard, Klaus, Lilien, David A. A., Westhoff, Julien, Hvidberg, Christine S. S., Prior, David J. J., Lutz, Franz, Thomas, Rilee E. E., Dahl-Jensen, Dorthe
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2022
• Subjects: elastic wave propagation; polycrystals; composites; effective properties; ice; CRYSTALLOGRAPHIC PREFERRED ORIENTATIONS; GRAIN-BOUNDARY COMPLIANCE; SEISMIC ANISOTROPY; CRYSTAL-ORIENTATION; WEST ANTARCTICA; UPPER-MANTLE; SINGLE-CRYSTALS; SHEAR MARGIN; VELOCITY; TEXTURE; Priestley; Priestley Glacier; West Antarctica; Antarc*; Antarctica; ice core
• Online Access: https://curis.ku.dk/portal/da/publications/elastic-wave-propagation-in-anisotropic-polycrystals(4baace4c-b46c-48d2-bfaa-f2ef24491dc3).html; https://doi.org/10.1098/rspa.2022.0574; https://curis.ku.dk/ws/files/329224384/rspa.2022.0574.pdf

An optimization problem is proposed for inferring physical properties of polycrystals given ultrasonic (elastic) wave velocity measurements, made across multiple sample orientations. The feasibility of the method is demonstrated by inferring both the effective grain elastic parameters and the grain...