  Graphene nanowiggles (GNW) are graphene-based nanostructures obtained by
making alternated regular cuts in pristine graphene nanoribbons. GNW were
recently synthesized and it was demonstrated that they exhibit tunable
electronic and magnetic properties by just varying their shape. Here, we have
investigated the mechanical properties and fracture patterns of a large number
of GNW of different shapes and sizes using fully atomistic reactive molecular
dynamics simulations. Our results show that the GNW mechanical properties are
strongly dependent on its shape and size and, as a general trend narrow sheets
have larger ultimate strength and Young's modulus than wide ones. The estimated
Young's modulus values were found to be in a range of ~ 100-1000 GPa and the
ultimate strength in a range of ~ 20-110 GPa, depending on GNW shape. Also,
super-ductile behaviour under strain was observed for some structures.
