Dynamic behavior of folded composite plates analyzed by the third order plate theory

A study of transient response of initially stressed composite sandwich folded plates

“…In this example, the natural frequencies of cantilever folded composite plate are examined for which FEM [10][11] The results from a mesh density of 72 elements in full panel are shown in Table 5 along with the results from Niyogi et al [10] and Lee et al [11]. The present results from FSDTC4 and FSDTV4…”

“…Niyogi et al [10] analysed composite folded plate structures using a nine node plate bending element with drilling degree of freedom based on a first order shear deformation theory. Lee et al [11] predicted the dynamic behaviour of folded composite plates by using a four node plate bending element with drilling degree of freedom based on a third order shear deformation theory. Subsequently Lee and Wooh [12] extended their earlier idea to analyse the free vibration response of composite box beams.…”

Structural dynamic behavior of skew sandwich plates with laminated composite faces

“…It also results from the effect of the coupling stiffnesses e B ij and e E ij in Eq. (8) [14]. restricted scope of this paper, we compare approximately the wave arrival time for different skew angles.…”

Detection of stiffness reductions in laminated composite plates from their dynamic response using the microgenetic algorithm

“…where the subscript r denotes the natural coordinates, jJ j and [ " B] denote the determinant of Jacobian matrix and the 13 Â 28 strain-displacement matrix, all in the (n, g) coordinates, respectively [16]. The governing equations of motion for the system is written in the form…”