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 ...

It is characterized as the negative ratio of the relative ... of the applied load (dimensionless ratio). A high Poisson’s ratio signifies a material that exhibits substantial elastic deformation ...

Two hundred years on, concepts such as Poisson's ratio continue to provide a good metric for the development of enhanced structural materials. In this focus issue we take a look at some of the ...