Visualizing Ultrafast Plasticity with X-ray Diffraction Microscopes
Abstract
To design materials for supersonic flight or for safe and effective explosives, we require predictive models to evaluate how they interact with shock waves. Shocks rapidly drive materials to high pressures and temperatures, causing extreme plasticity, phase transitions, and chemistry that lead to unexpected failures or reactivity (1). Predictive accuracy for shock models is limited by sparse and-or indirect experiments to validate them, as imaging cannot resolve the initial mechanisms with their current resolution and sensitivity (2, 3). Advances in X-ray science and computer vision now enable ultrafast defect microscopy with feature extraction and classification to directly measure plasticity in statistically-significant volumes. Now we require experts to extend these tools to shock physics.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 06, 2024
- Source ID
- FA95502310347
Entities
People
- Leora Dresselhaus-marais
Organizations
- Air Force Office of Scientific Research
- Stanford University
- United States Air Force