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Julia-greer
Tiny Diatoms Boast Enormous Strength

02-08-16

Researchers in the lab of Julia R. Greer, Professor of Materials Science and Mechanics, have recently found that diatom shells have the highest specific strength—the strength at which a structure breaks with respect to its density—of any known biological material, including bone, antlers, and teeth. [Caltech story]

Tags: Julia Greer APhMS MCE MedE research highlights

Moriah-bischann
Moriah Bischann Wins SURF Speaking Competition

02-04-16

Material science undergraduate student Moriah Bischann, mentored by aerospace postdoctoral scholar, Dr. Owen Kingstedt, is the winner of the Doris S. Perpall Summer Undergraduate Research Fellowships (SURF) Speaking Competition. She was recognized as the best speakers-out of the 200 students who presented their SURF research. Her summer research focused on exploring the next generation of structural materials. During her ten week SURF project she studied the effects of alloying and processing on the dynamic behavior of magnesium (Mg). This work was done to address the larger question of whether Mg is a useful material for the automotive, aerospace, energy, and defense industries where a material is needed that has low density, but also the strength to withstand high impact forces.

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Tags: Moriah Bischann Owen Kingstedt APhMS GALCIT research highlight honors

Ares-rosakis
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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Tags: Ares Rosakis GALCIT MCE honors

Teo-wilkening
Cancer Treatment in a Painless Patch

11-05-15

Mechanical engineering undergraduate student, Teo Wilkening, spent this past summer working with Professor Gharib to test the preliminary design for an alternative—and possibly much less painful—method of chemotherapy drug delivery through a patch. To avoid the pain caused by the large needle traditionally used for such an intravenous injection, the team envisioned a patch containing hundreds of micrometer-scale needles, too small in diameter to be sensed by the nerves in the skin. [Caltech story]

Tags: Teo Wilkening Morteza Gharib MCE MedE GALCIT research highlight

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Aryanfar
Extending a Battery's Lifetime with Heat

10-03-15

The research of alumnus Asghar Aryanfar (’15 PhD, ME) along with Professors Goddard and Hoffmann has shown that heat can break down the damaging branch-like structures that grow inside batteries, which may possibly be used to extend battery lifetimes. [Learn more] [Read the paper]

Tags: Asghar Aryanfar William Goddard Michael Hoffmann ESE MCE research highlights alumni

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Making A World of Difference: Engineers Week

10-02-15

The 2015 launch of Engineers Week was celebrated at Caltech with a panel discussion on diversity and how engineers are making a world of difference. The event was designed to energize national and international groups in their planning of programs and events to celebrate the accomplishments of engineers as well as to inspire the next generation during Engineers Week, which will be February 21–26, 2016. [Watch the webcast]

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Tags: Thomas Rosenbaum Guruswami Ravichandran Domniki Asimaki Aileen Cheng Sandra Magnus Andrew Smart John Tracy

Julia-greer
Atomic Fractals in Metallic Glasses

09-18-15

Julia R. Greer, Professor of Materials Science and Mechanics, and colleagues including graduate student David Chen have shown that metallic glasses has an atomic-level structure although it differs from the periodic lattices that characterize crystalline metals. "Our group has solved this paradox by showing that atoms are only arranged fractally up to a certain scale," Greer says. "Larger than that scale, clusters of atoms are packed randomly and tightly, making a fully dense material, just like a regular metal. So we can have something that is both fractal and fully dense." [Caltech story]

Tags: Julia Greer David Chen APhMS MCE MedE research highlights

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Sergio Pellegrino Elected President of the IASS

09-02-15

Professor Sergio Pellegrino, Joyce and Kent Kresa Professor of Aeronautics and Professor of Civil Engineering; Jet Propulsion Laboratory Senior Research Scientist, has been elected President of the International Association for Shell and Spatial Structures (IASS). The IASS, founded in 1959, aims to further progress through an interchange of ideas among all those interested in lightweight structural systems such as lattice, tension, membrane, and shell structures. [New Officers of IASS]

Tags: Sergio Pellegrino GALCIT MCE honors

Robosub
Crush, the RoboSub, Places in International Competition

08-20-15

The Caltech Robotics Team placed fourth in the 18th Annual International RoboSub Competition. The Competition is designed to introduce students to high-tech STEM fields such as maritime robotics. This year's team from Caltech was led by mechanical engineering recent graduate Justin Koch who was advised by Professor Joel Burdick. [Caltech story]

Tags: Justin Koch Joel Burdick MCE CMS alumni honors

Department of Mechanical and Civil Engineering