Figure 4
From: Stretchable and highly sensitive graphene-on-polymer strain sensors
Fracture model of GWF.
(a) Schematic structure of polycrystalline graphene (top) and the critical strain versus graphene sheet size plot (bottom). (b) The equivalent circuit model for estimating the resistance of GWF's with specified cracked GMRs. (c) Current pathway through a fractured GWF. (d) Calculated resistance changes of GWFs with different configurations.
