Free Vibration Analysis of Symmetrically Laminated Folded Plate Structures Using an Element-Free Galerkin Method

Table 11

Dimensionless free vibration frequencies of the laminated shell (Figure 21(c)).

Modes	Present results	ANSYS results	Relative errors
1	7.09973	7.07069	0.4%
2	7.09973	7.07069	0.4%
3	9.75645	9.71035	0.5%
4	15.16616	15.11418	0.3%
5	18.02388	17.94379	0.4%