Caltech
Ares J. Rosakis Ares J. Rosakis
Theodore von Kármán Professor of Aeronautics
and Mechanical Engineering

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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Caltech    last update: 05/31/2016