Nonlinear Free and Forced Vibration Behavior of Shear-Deformable Composite Beams with Shape Memory Alloy Fibers

Table 4

The nonlinear natural frequency for different values of with various (, = 60°C, and ).

	Beam theory	= 0.000	= 0.005	= 0.150
1	Euler-Bernoulli	2.0707 × 10^4	1.8512 × 10^4	3.9777 × 10^4
	Timoshenko	1.4572 × 10^4	1.4222 × 10^4	3.8129 × 10^4
5	Euler-Bernoulli	6.4337 × 10^4	5.2779 × 10^4	6.1971 × 10^4
	Timoshenko	6.2632 × 10^4	5.1432 × 10^4	6.0927 × 10^4
7	Euler-Bernoulli	8.8599 × 10^4	7.2309 × 10^4	7.8094 × 10^4
	Timoshenko	8.7369 × 10^4	7.1331 × 10^4	7.7268 × 10^4