Theoretical Investigation on Failure Strength and Fracture Toughness of Precracked Single-Layer Graphene Sheets

Table 2

The parameters in modified Morse potential [27, 28].

(m)	(m^-1)	(N·m)	(rad)	(N·m/rad^2)	(rad^-4)
1.421 × 10^−10	2.625 × 10^10	6.03105 × 10^−19	2.094	0.9 × 10^−18	0.754