Probing the Dynamic Shearing Resistance and Phase Transformations of Soda-lime Glass at High Pressur
Abstract
Fundamental research is proposed on the dynamic response of soda-lime glass (SLG) at high pressures and high shearing rates. Dynamic, shearing resistance is to be measured in pressure-shear plate impact experiments at higher pressures than achieved earlier. These h,igher pressures are made possible by the development of a high-impact-velocity powder gun with a keyway in the barrel to prevent rot,ation of the impacting flyer plate. This newly developed capability, combined with newly developed fiber-optic laser interferometry,, makes it possible to investigate important regimes of dynamic response that were not accessible previously. Besides advancing the u,nderstanding of shearing resistance, the proposed research will advance the understanding of phase transformations that occur in the, high-velocity impact of SLG. A pulse-probe approach will be used to investigate phase transformations in which a small amplitude sh,ear wave will be used to probe the state of an SLG sample that has been transformed by a high amplitude compressive wave. Understand,ing derived from these fundamental research investigations of SLG will be important for several DoD applications as well as for adva,ncing high-pressure geophysics research of importance in civilian applications. (Approved for Public Release)
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 10, 2021
- Source ID
- N000142212076
Entities
People
- Guruswami Ravichandran
Organizations
- California Institute of Technology
- Office of Naval Research
- United States Navy