Research Interests
Current Projects
Video
Hypervelocity Impact Phenomena
PSAAP Site Visit- 2011
- A shooting star captured in the laboratory: Visualization of ionized atmosphere surrounding a nylon projectile in a rarified gas is used for projectile speed measurement. [.avi] [.mov]
Laboratory Earthquakes 1: Rupture Speeds, Modes, Inhomogeneous Faults, Directionality
Astor Talk
- A sub-Rayleigh rupture transitioning to supershear [.avi]
- A close-up view of the sub-Rayleigh to supershear rupture transition [.avi]
Laboratory Earthquakes 2: Ground Shaking Signatures of Supershear Earthquakes
UCLA Presentation
- Identical Buildings at two near-fault locations subjected to ground shaking from a supershear and sub-Rayleigh rupture respectively: The supershear records have been obtained in the laboratory in an experiment mimicking the 2002 Mw Denali Alaska earthquake. [.wmv]
- FEM calculations illustrating the speed transition mechanism and revealing the existence of a trailing -Rayleigh signature left behind the supershear rupture tip. [.wmv]
- A supersonic aircraft crossing the sound barrier: How does a Mach front sound? [.wmv]
Mechanics of Thin Films and Wafer Level Metrology
Oxford Presentation – Engineering Talk
- Temperature cycling of an Al film deposited on a square silicon substrate: Surface slope evolution obtained through CGS interferometry in situ and in real time.
[.avi]
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last
update:
11/22/2022