of Mechanical Engineering
Institute of Technology
Office: #1-330 Lab: #1-334
MA 02139-1713, USA
Phone Office: +1 617-324-3325
Phone Lab: +1 617-715-4780
e-mail: preis@@ mit.edu
EGS.Lab we are dedicated to the fundamental understanding of
the mechanics of thin objects and structures; including rods, plates
and shells. The large
displacements permissible in such configurations can give rise to
non-negligible geometric nonlinearities, even if its material
properties remain linear. Of interest
is also the coupling of the
elasticity of thin objects with other phenomena such as fracture,
adhesion, ﬂuid forces at liquid interfaces and ﬂow.
Examples of relevant applications range from
thin elements in
stretchable electronics and micro-actuators to large civil engineering
contexts such as domes, hypar roofs and borewell drilling.
The starting point of the investigations is
often through well
controlled experiments of desktop-scale model systems for which we take
advantage of advanced digital fabrication techniques. The final goal is
often the predictive
understanding of the large deformations of thin structures. Once a
theoretical framework has been developed and the underlying mechanics
rationalized, we then aim at implementing it at scale of the original
problem (small or large scale) towards practical applications.
A general overview of the
questions involving thin structures that interest us can be
found in the Journal
Club of iMechanica (June 2010),
in the Research
Group profile @ the Engineering Mechanics Institute (September 2011), the Journal
Club of iMechanica (October 2013) and MIT Spectrum (Spring 2014).
For more info, pics
and videos on what we do, please visit our research
- [12/09/14] Paper on the theory of wrinkling on curved surfaces, in collaboration with the group of Jorn Dunkel, is accepted for publciation in Nature Materials. (more soon).
- [12/04/14] Paper on the pattern morphology of the elastic
sewing machine is accepted for the first issue of new journal Extreme Mechanics Letters
(more about EML here and here). [html, pdf].
- [11/26/14] Paper on wrinkling crystalography on curved surfaces is accepted for publication in PNAS! (more soon).
- [10/16/14] Congratulations to Noor and Khalid for wining 1st place of the Best Poster Competition at the 5th NEW.Mech (New England Workshop for the Mechanics of Materials and Structures) at UMass Amherst.
- [10/03/14] Khalid's paper on the coiling of elastic rods is published in PNAS. [MIT News, more info Here].
- [09/16/14] The EGS.Lab hosted 3 Chefs from Mugaritz, one of the top restaurants in the world, who gave a seminar at the MMEC Seminar Series. Read more in the CAST Blog, El Mercurio and El Pais (Back page of 09/19/14)!
- [06/27/14] Our paper on the buckling of a rod embedded on an elastic matrix is published in Soft Matter [html, pdf].
- [05/28/14] The magazine SPECTRVM features the work from our lab, in their recent issue that focuses on Basie Research. [Here]
- [05/28/14] Mark Guttag passes his Ph.D. qualifying exams in Mechanical Engineering.
- [05/27/14] Paper on Smart Morphable Surfaces for Aerodynamic Drag Reduction to appear in Advanced Materials [html, pdf]. [More info Here].
- [03/04/14] Khalid Jawed won the GSNP's Best Student Speaker Award at the March Meeting of the American Physical Society in Denver, CO. Undergraduate Noor Khouri (UROP) also presented her work at the conference.
- [02/13/14] Our paper on the Mechanics of Curly Hair is
published in Phys. Rev. Lett. (Editor's Suggestion & Cover Story)
- [02/07/14] Pedro Reis is promoted from Assistant to
Associate Professor (effective July 1st).
- [02/07/14] Noor Khouri, a UROP in our lab, represents our group at the CEE Research Speed Dating Event, where we also developed a novel online research speed dating app.
- [30/01/14] Alice Nasto and Khalid Jawed pass the Ph.D. qualifying exams in MechE/MIT.
- [01/24/13] Pedro Reis receives the Early CAREER Award from
the National Science Foundation [MITNews, NSF].
- [12/12/13] James Miller succesfully defends his Ph.D.
thesis. Congratulations Dr. Miller!
- [11/06/13] Our past work of synthetic flowers that can grab
water is now being used by renowned chef Jose Andres as a palate clenaser.
- [09/15/13] Pedro Reis is named to Popular Science’s Brilliant 10
list. [More info Here].
- [04/29/13] Our article on the 'Contortion'
of Thin Elastic Rods is puhlished on Soft Matter for the special themed
issue on "Geometry and Topology of Soft Materials". [More info Here].
- [04/03/13] MIT News article on our
recent educational experiments on online education of Mechanics at
the undergraduate level, "A new wrinkle in online education".
- [04/11/13] Our paper on localized
structures (s-cones) in thin elastic shells under indentation is
published on Soft Matter.
[More info Here]
- [04/03/13] Arnaud and Jay's paper on a
novel simulation tool to compute the equilibria and stability of
geometrically-nonlinear configuration of thin elastic rods is
published on JMPS. [More info Here]
- [04/01/13] We welcome Joćo Lopes, an engineer from CERN, who is
visiting our lab on sabbatical.
- [10/05/12] Our paper on the Geometry-Induced
rigidity of nonspherical pressurized shells is published in Phys. Rev. Lett (Cover story
Focus and Editor's Suggestion). More info Here.
- [08/08/12] The journal Nature
features the "Extreme Mechanics"
movement and some of work in a News Feature article! [html, pdf].
Thanks to LaCozina
for help with graphical design.
Last update: 10th July 2014.