By using new geometric shapes in shock-absorbing material, researchers at the Universities of Gothenburg and Isfahan have ...

Natural auxetic materials include tendons and cat skin, while synthetic ones are used to make heart and vascular stents that expand and contract as required.

If the Poisson's ratio of the material if positive, then tensile/compressive strains in the x-direction produce compressive/tensile strains in the y- and z-directions, as shown below. Negative Poisson ...

An explanation of the auxetic material found in the inner layer of a mussel shell and how it absorbs impact by becoming denser when stretched. At Sheffield Hallam University, engineers are ...

A team of researchers from the University of Gothenburg in Sweden and the University of Isfahan in Iran has developed a new ...

Areas of expertise I model and produce auxetics - solids exhibiting unusual deformation mechanisms - they expand in all directions when pulled in only one, opposite to "classical" materials. Typical ...

By using new geometric shapes in the shock-absorbing material, researchers at the Universities of Gothenburg and Isfahan have developed a bicycle ...

By using geometric shapes in the shock-absorbing material, researchers have developed a bicycle helmet that provides better protection against head injuries. The material absorbs shock by contracting ...