A review on mechanics and mechanical properties of 2D ...
1. Introduction. The isolation of monolayer graphene flakes by mechanical exfoliation of bulk graphite opened the field of two-dimensional (2D) materials .Since then, many other 2D materials have been discovered, such as transition metal-dichalcogenides (TMDs, e.g., MoS 2), hexagonal boron-nitride (h-BN), and black phosphorous or phosphorene.