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Earthquakes Can Make Thrust Faults Open Violently and Snap Shut

05-01-17

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, and colleagues at Caltech and École normale supérieure in Paris have discovered that fast ruptures propagating up toward the earth's surface along a thrust fault can cause one side of a fault to twist away from the other, opening up a gap of up to a few meters that then snaps shut. [Caltech story]

Tags: GALCIT MCE Ares Rosakis Hiroo Kanamori Harsha Bhat Vahe Gabuchian

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Mechanics of Materials Across Nano to Geological Time and Length Scales

09-29-16

A symposium was organized at Brown University on September 16-17, 2016 to celebrate the technical contributions of Professor Ares Rosakis on the occasion of his 60th birthday. The symposium was chaired by Professors Pradeep Guduru, Huajian Gao, and G. Ravichandran. It brought together distinguished engineers and scientists from multiple disciplines to discussion research frontiers relating to the mechanics of materials across nano to geological time and length scales. [Symposium program] [Photos]

Tags: Ares Rosakis Pradeep Guduru Huajian Gao Guruswami Ravichandran research highlights

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Professor Rosakis Elected to the National Academy of Sciences

05-03-16

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, has been elected to the National Academy of Sciences (NAS). His research interests span a wide spectrum of length and time scales and range from the mechanics of earthquake seismology, to the physical processes involved in the catastrophic failure of aerospace materials, to the reliability of micro-electronic and opto-electronic structures and devices. The National Academy of Sciences is a private organization of scientists and engineers dedicated to the furtherance of science and its use for the general welfare.[Caltech story] [List of NAS members]

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Professor Rosakis Receives the Von Kármán Medal

03-22-16

Ares Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, will receive the Theodore von Kármán Medal from the American Society of Civil Engineers. The medal recognizes distinguished achievement in engineering mechanics. Professor Rosakis is being honored for "discovering several fundamental physical phenomena in dynamic fracture of heterogeneous materials and interfaces at various length and time scales.” [Caltech story]

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Professor Rosakis Inducted Into the Academy of Athens

01-12-16

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, has been inducted into the Academy of Athens in the class of Natural Sciences for his “exceptional contributions to science, in particular in experimental science, in the mechanics of solids, and in aerospace.” He was indicated as a Corresponding Member of this selective academy - there are only 76 members in his section and class. [Video of event] [Caltech story]

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Professors Rosakis and Daraio Honored by Society for Experimental Mechanics (SEM)

06-22-15

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, is the 2015 recipient of the Sia Nemat-Nasser Medal “for innovative singular theoretical and experimental contributions in dynamic fracture and optical techniques, and their application to rupture faults.” The Sia Nemat-Nasser Medal is awarded by the Society for Experimental Mechanics (SEM) and recognizes an individual for distinguished, innovative, and outstanding work that has realized the impact of experimental mechanics on other scientific and engineering fields through an integrated multidisciplinary research. Professor Rosakis received the award at the 2015 SEM annual conference. At the same event Professor Chiara Daraio and colleagues received the 2015 M. Hetényi Award for best research paper published in Experimental Mechanics. Furthermore, EAS alumnus Hugh Bruck became a 2015 fellow and EAS alumnus John Lambros received the M.M. Frocht Award.

Tags: Ares Rosakis Chiara Daraio Hugh Bruck John Lambros GALCIT APhMS honors

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Dr. Rittel Recognized by Academy of Sciences of Turin

06-18-15

Dr. Daniel Rittel, long term GALCIT Visiting Associate working with Professors Ravichandran and Rosakis, has been awarded the 2015 “Angiola Gili e Cataldo Agostinelli” international prize for Applied or Theoretical Mechanics by the Academy of Sciences of Turin, Italy. Dr. Rittel has performed pioneering research in the mechanics of materials, with particular focus on the coupling thermomechanical solids. His work has demonstrated that the energy stored in the material is not only due to thermodynamic effects, but also due to changes in the microstructure identified as dynamic recrystallization. His research has also led to a paradigm shift in the modeling of the localization phenomena of sliding dynamics, combining the science of materials with the mechanics using numerical simulations. [List of past recipients]

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Space Solar Power Initiative

04-28-15

Caltech and Northrop Grumman Corporation have signed a $17.5 million sponsored research agreement for the development of the Space Solar Power Initiative (SSPI). The initiative will develop technologies in three areas: high-efficiency ultralight photovoltaics; ultralight deployable space structures; and phased array and power transmission. "The Space Solar Power Initiative brings together electrical engineers, applied physicists, and aerospace engineers in the type of profound interdisciplinary collaboration that is seamlessly enhanced at a small place like Caltech... We are working on extremely difficult problems that could eventually provide the world with new, and very cost-competitive technology for sustainable energy,” said EAS Chair Ares Rosakis. [Caltech story] [Northrop Grumman Release]

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The Sky Is the Limit: $7.8 Million Gift to Support Aerospace Innovation

01-27-15

Through three gifts to the EAS Division, investor and philanthropist Foster Stanback and his wife, Coco, aim to help Caltech advance innovation in space exploration, with the attendant benefits of an educated workforce, skilled jobs, and spinoff technologies. "The Stanback gifts contribute vitally to the EAS strategy of attracting the best faculty and students, then giving them the resources, acknowledgement, and support to shine. For space engineering, these gifts will allow us to perpetually fund bold seed projects—many of which will lead to spectacular inventions and technologies,” explains EAS Chair Ares Rosakis. [Caltech story]

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Professor Rosakis Elected to Academia Europaea

11-03-14

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering as well as the Otis Booth Leadership Chair of the Division of Engineering and Applied Science, has been elected to the Academy of Europe (Academia Europaea) in the section of Physics and Engineering Sciences. The Academia Europaea was founded in 1988 and is an organization of eminent, individual scholars from across the continent of Europe. The 3000 members cover a wide range of academic disciplines including the humanities, social, physical and life sciences as well as mathematics, engineering and medicine. In addition to Professor Ares Rosakis, Caltech's Provost Edward Stolper, the Institute's past president David Baltimore, and Professor Alexander Varshavsky are members of the Academy.

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