Research Article

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

Table 8

Dimensionless free vibration frequencies of the cantilevered tub structure with the lamination scheme (−45°/45°/−45°/45°/−45°…)10.

ModesPresent resultsANSYS resultsRelative errors

112.668112.563990.83%
212.766312.563991.61%
318.670218.493290.96%
431.40731.054951.13%
533.190732.969840.67%