On the Finite Element Free Vibration Analysis of Delaminated Layered Beams: A New Assembly Technique

Table 3

The first and second nondimensional frequency parameter () for model 1.

	2-node; FEM	3-node; FEM	Analytical (CM) [31]	Ref. [31]	DSM [27]
0.2	4.725	4.725	4.725	4.7	4.725	Mode 1
0.3	4.691	4.695	4.695	4.7	4.695
0.4	4.574	4.572	4.575	4.6	4.575
0.5	4.318	4.315	4.315	4.3	4.315
0.2	7.054	7.046	7.045	7.1	7.045	Mode 2
0.3	6.337	6.334	6.335	6.3	6.335
0.4	5.965	5.960	5.965	6.0	5.965
0.5	5.860	5.846	5.845	5.9	5.845