Matsumoto, Elisabetta A.
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ItemTwisted Topological Tangles or: the knot theory of knitting( 2020-02-20) Matsumoto, Elisabetta A. ; Georgia Institute of Technology. GVU Center ; Georgia Institute of Technology. School of PhysicsImagine a 1D curve, then use it to fill a 2D manifold that covers an arbitrary 3D object – this computationally intensive materials challenge has been realized in the ancient technology known as knitting. This process for making functional materials 2D materials from 1D portable cloth dates back to prehistory, with the oldest known examples dating from the 11th century BCE. Knitted textiles are ubiquitous as they are easy and cheap to create, lightweight, portable, flexible and stretchy. As with many functional materials, the key to knitting’s extraordinary properties lies in its microstructure. At the 1D level, knits are composed of an interlocking series of slip knots. At the most basic level there is only one manipulation that creates a knitted stitch – pulling a loop of yarn through another loop. However, there exist hundreds of books with thousands of patterns of stitches with seemingly unbounded complexity. The topology of knitted stitches has a profound impact on the geometry and elasticity of the resulting fabric. This puts a new spin on additive manufacturing – not only can stitch pattern control the local and global geometry of a textile, but the creation process encodes mechanical properties within the material itself. Unlike standard additive manufacturing techniques, the innate properties of the yarn and the stitch microstructure has a direct effect on the global geometric and mechanical outcome of knitted fabrics.
ItemSymposium on Soft Matter Forefronts - Welcome(Georgia Institute of Technology, 2018-04-18) Alexeev, Alexander ; Brettmann, Blair ; Fernandez-Nieves, Alberto ; Matsumoto, Elisabetta A. ; Rocklin, D. Zeb ; Yunker, Peter J. ; Georgia Institute of Technology. Center for the Science and Technology of Advanced Materials and InterfacesThe symposium aims to familiarize attendees with the soft-matter research and expertise at Georgia Tech and to demonstrate the role Georgia Tech plays in influencing and advancing the field.
ItemNon-Euclidean Virtual Reality(Georgia Institute of Technology, 2018-10-15) Matsumoto, Elisabetta A. ; Georgia Institute of Technology. School of PhysicsThe 2016 confirmation of Einstein's prediction of gravitational waves has put the spotlight back on the importance of curvature for the physics of the universe. While the ability of mass to curve our space has fueled the imagination of many, it is by far not the only instance of warped spaces being important for physics: The materials science of the very small scale -the science of nanostructures and nanoengineering- is one of them. In fact, often these 'small' spaces are very strongly curved, far from what mathematicians call 'Euclidean'; for example two parallel lines may no longer only meet at infinity. Bizarre and exotic spaces with very unusual properties. Until recently, many of these complex spaces defied most people's imagination, but Virtual Reality technology has now been developed to help us immerse in them. Prof Sabetta Matsumoto will take us on a tour -enabled by the latest in Virtual Reality technology- into the innate beauty and mystery of some spaces, such as the cross between a Euclidean straight line and Poincare's hyperbolic plane made popular by Escher's artwork. Real-world applications or technological uses of these mathematical insights may seem to be light-years off, but don't worry, the real world will catch up with the imagination faster than we think.
ItemPurls of Wisdom: The Geometry and Topology of Weavables, Wearables and Wallpaper(Georgia Institute of Technology, 2016-11-28) Matsumoto, Elisabetta A. ; Georgia Institute of Technology. School of PhysicsCurved space and bizarre mathematical worlds beyond Euclid’s axioms entered physics with Einstein’s general theory of relativity. But these geometries are all around us, hiding in plain sight, in the guise of familiar settings. For instance, did you know that making your clothes fit is actually a problem in non-Euclidean geometry? Join Prof. Matsumoto as she takes a sock’s eye view of geometry and topology and walks you through an evening of fun with fabrics.