Reentrant tensegrity: An auxetic, three-periodic, chiral tensegrity structure

In a new report now published in Science Advances, Mathias Oster, and a team of scientists at the Institute for Mathematics at the Berlin Institute of Technology and the School of Engineering at the University of Edinburg in the U.K., presented a three-periodic, chiral tensegrity structure and demonstrated that it is auxetic, i.e., such materials become thicker perpendicular to the applied force when stretched. An auxetic structure has a negative Poisson's ratio and can form materials with unexp...