Two new articles highlight promising ways to change structures. 1932. Nearly ninety years later, according to a new research paper published in the Proceedings of the National Academy of Sciences, nearly ninety years later, corner lamp is inspiring a new approach to building multifunctional deformation materials for robotics, biotechnology, and architectural applications. it's over.
Development of New Materials Deformation is a very active area of research because there are many promising programs such as artificial muscle building - handmade materials. Stimulants or similar devices that mimic the contraction, expansion and rotation (torque) properties of normal muscle movement. For example, in 2019, a team of Japanese researchers glued an organic crystalline material onto a polymer for greater flexibility and demonstrated their concept by using their materials to make a seated aluminum foil paper doll. Most artificial muscles are designed to respond to electric fields (such as electrically activated polymers), changes in temperature (such as memory alloys and fishing line), and aerobic changes in air pressure.Advertising
Later that year, MIT scientists created a set of "4D materials" that use technology similar to 3D printing, but are designed to respond to changes over time. Environment such as humidity and temperature distortion. They are also sometimes referred to as master molding or forming systems. This type of deformed material could one day be used to make tents that open and inflate on their own, just by changing temperature (or other environmental conditions). Other possible applications include deformable telescopic lenses, stents, scaffolding for artificial tissues, and soft robotics. src="https://safirsoft.com/picsbody/2110/11303-1.jpg" alt="https://safirsoft.com Luxo, Jr. and Mystic create new ways to reshape materials" srcset="https://cdn.arstechnica.net/wp -content / uploads / 2021/10 / shapeshift3.jpg 2x "> Magnification / Harvard researchers have created a deformable material that can retain and withstand any shape possible. Harvard SEAS / CC BY
T for Totimorphic
Take it and keep it. Most deforming materials are limited to a handful. That is why they are called "totorvic" structural materials.
“The deformation and structure of today’s materials can only be transferred between a few stable formations, but we have shown how to create structural materials that have a wide range of shapes - L Mahadevan, one” said the co-author of the College of Engineering and Applied Sciences Harvard University (A. SEAS): "Independent control of geometry and mechanics provides the basis for engineering a functional form using a new type of single cell." Both strength and tensile strength (or compatibility) have been improved. If the material is too compatible, you won't be able to maintain the different shapes it takes because the formation will not be stable. If the material is too hard. Stiff, you won't be able to reconfigure at all. This is where the angle is where the lamp comes in. It remains constant "infinitely mutable". They are stretched and compressed as much as is necessary to withstand the force of gravity. The technical term is "stable neutral structure": a structure in which the rigid elements are perfectly balanced, enabling them to move between an unlimited number of positions or directions while still in each of them, being stable, and making the transition. Mahadvan et al essentially created an assembly using interchangeable hinges as building blocks to create the same balance between rigidity and conformability. Harvard researchers called the material "totimorphic" because of its ability to deform into any stable shape. The researchers attached single cells to stable normal joints and separated the two- and three-dimensional structures from the whole cells.
"By having a stable neutral unit, we can separate the geometry of a material from its mechanical response both individually and collectively." The geometry of a single cell can be altered by changing the overall size as well as the length of a single movable base, said Gaurav Chaudhry, a postdoctoral researcher at SEAS, while its elastic response can be altered by changing the stiffness of the springs in the structure or changing its length. Columns and links. "
As a proof of concept, the team showed that a plate of its whole cells can bend, rotate, carry weight, and even transform into face-like shapes. S. combines these elements into structures that take any shape through a mechanical interaction They can be used as sensors in robotics or biotechnology or scaled for architectural-scale use.
Luxo, Jr. And Mystic develops new methods to deform materials
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