High-speed damage visualization and xrd in materials under impact (INVITED)

Abstract eng:
Post-peak damage and failure of materials under impact loading is a critical aspect in impact energy dissipation, but challenging to experimentally characterize, especially in opaque materials. We recently integrated Kolsky compression/tension bars with high-speed x- ray phase contract imaging (PCI) and simultaneous x-ray diffraction (XRD) capabilities to visualize the material impact damage at different length scales in real time. The effectiveness of the novel union between these powerfiil techniques is demonstrated by a series of dynamic experiments on a variety of material systems, including particle interaction in granular materials, fiber-matrix debonding in cruciform specimens, ligament-bone junction damage, and microstructural evolutions in an aluminum and a shape-memory alloy.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket