Nonlinear Vibration of a Functionally Graded Nanobeam Based on the Nonlocal Strain Gradient Theory considering Thickness Effect

Table 2

The variation of the physical neutral surface to the power-law index.

k	0	0.1	0.5	1	2	3	4	5	10
c/h	0	0.0191	0.0747	0.1148	0.1490	0.1576	0.1566	0.1517	0.1196