New paradigms for X-ray probing of dynamic failure at the mesoscale
Abstract
We propose to initiate a new PhD project to assist in the development and application of new pulsed-power based X-ray systems to facilitate in-house high-resolution X-ray radiography and tomography of dynamic mechanical phenomena. These systems will utilize a new compact X-pinch design, with a key part of the project dedicated to exploring and improving the repeatability and tunability of the source. Once optimised, the systems will be integrated onto various gas gun platforms (single- and two-stage) in both single and multiple-projection configurations, and used to investigate fragmentation in reactive materials. This project will also focus on modelling of the source and corresponding phase-contrast radiographs, thereby assisting in the measurement and interpretation of fragmentation fields. With results assisting validation of a multiscale modelling workflow being developed in a parallel program, this work will ultimately aid the development of new models for this important class of materials. Importantly, this work will showcase the advantages in using compact X-pinch systems over other methods, in terms of spatial resolution and 3D visualization, as applied to these and related dynamic failure scenarios.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA86552417353
Entities
People
- Daniel E Eakins
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Oxford