The effect of non-uniform pitch length and spiraling pathway on the mechanical properties of coiled carbon nanotubes

Symmetry constraints on the orientation dependence of high-order elastic constants for the hexagonal boron nitride monolayer

“…The anisotropic elastic constant can result in the anisotropy of other mechanical properties since the elastic constant is a fundamental quantity in the mechanics field. We take Poisson's ratio, a widely studied physical quantity in nanomaterials, 21,22 as an example to demonstrate the influence of the anisotropy of elastic constants. The results indicate a significant anisotropy in Poisson's ratio under large strains.…”