Professor ARES J. ROSAKIS: World Recognized Leader in Engineering Research

Prof Rosakis Ares

 

 

ARES J. ROSAKIS

Otis Booth Leadership Chair, Division of Engineering and Applied Science

Theodore von Kármán Professor of Aeronautics and Mechanical Engineering

California Institute of Technology

 

Honors and Awards (selected)

Fellow of the American Academy of Arts and Sciences (2009).

Fellow in the Society of Experimental Mechanics (2009)

Elected Member of the National Academy of Engineering  (2011)

(Professor Rosakis was elected for discovery of intersonic rupture, contributions to understanding dynamic failure, and methods to determine stresses in thin-film structures. Election to the National Academy of Engineering is among the highest professional distinctions accorded to an engineer).

P.S. Theocaris Award (2013)

(This award recognizes a senior professional who is a Fellow of SEM and who has conducted outstanding research throughout his career in the field of experimental mechanics.)

 

Research Achievements

Professor Ares Rosakis works in the fields of Aerospace, of solid mechanics, mechanics of material’s failure and the mechanics of earthquake seismology. He is the author of more than 260 papers. He pioneered the development of experiments aimed at the discovery and elucidation of the physical processes involved in dynamic fracture and catastrophic failure of materials such as metals, polymers, metallic glasses composites, layered solids and frictional interfaces.

– Professor Rosakis and his coworkers have been credited with the experimental discovery of the “intersonic” or “supershear rupture” phenomenon. Their experimental discoveries of supershear rupture has refocused the attention of the geophysics community to the study of supershear earthquakes.

–  Professor Rosakis discovered shear dominated transonic de-bonding in various layered systems.

–  Professor Rosakis discovered that earthquake ruptures may propagate with super-shear rupture speeds and may also do so as either shear cracks or pulses.

– Professor Rosakis invented the fastest existing high-speed, full-field, microprobe infrared thermal camera (1 million frames/second), which provided the first full-field recording of the transient temperature field developed during dynamic localized shear deformation.

– Professor Rosakis holds 13 US patents. He has invented a number of full field optical diagnostic techniques (both in the visible and infra-red wavelength range). These include the Coherent Gradient Sensor (CGS) which he applied to elucidate the multi-scale mechanics of dynamic interfacial fracture of bonded solids with applications to composite materials, sandwich structures and thin films.

 

Selected Publications :

– Bhat, H. S., Rosakis, A. J., Sammis, C. G. “A Micromechanics Based Constitutive Model For Brittle Failure at High Strain Rates”, Journal of Applied Mechanics, Vol. 79 (3),  2012.

– Mihaly, J.M., Tandy, J. D., Adams, M. A. Rosakis, A. J. “In Situ Diagnostics for a Small-Bore Hypervelocity Impact Facility”, International Journal of Impact Engineering,, Vol. 62, pp. 13-26, December 2013.

– Lu, X., Lapusta, N., and Rosakis, A.J.  “Pulse and Crack-like Ruptures in Experiments Mimicking Crustal Earthquakes”, The Proceedings of the National Academy of Sciences USA (PNAS),Vol. 104, No. 48, 18931-18936, 2007.

–  Lykotrafitis, G., Rosakis, A. J. and Ravichandran, G.   “Self-healing, pulse-like, shear ruptures in the laboratory”, Science, Vol. 313, 1765-1768, 2006.

– Xia, K., Rosakis, A.J., Kanamori, H. and Rice, J.R.  “Laboratory Earthquakes along Inhomogeneous Faults: Directionality and Supershear”, Science, Vol. 308, Issue 5722, 681-684, 2005.

 

Leadership Accomplishments (Selected)

– 3 years in a row Engineering and Technology at Caltech was ranked #1 by the Times Higher Education World University Ranking (Thomson Reuters) for2010-2011, 2011-2012, and 2012-2013.

– Led the initiative to revitalize the Graduate Aerospace Laboratories (GALCIT). Caltech was ranked #1 or #2 in Aerospace Engineering for the last six years by the US News and World Report.

Further Information:

http://rosakis.caltech.edu/research/index.html

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