Research Article

An Investigation on the Nonlinear Free Vibration Analysis of Beams with Simply Supported Boundary Conditions Using Four Engineering Theories

Figure 3

Nonlinear frequency versus nondimensional amplitude (- - -) Bernoulli-Euler’s, ( ) Rayleigh’s, (– - –) shear, and (—) Timoshenko’s Beam Models.
842805.fig.003a
(a)
842805.fig.003b
(b)