We study the linear dynamics of a layered elastic beam by means of the asymptotic expansion method. The beam consists of three linearly elastic isotropic layers: the middle layer is considered to be thinner and softer than the upper and lower ones. We characterize the limit models by distinguishing three cases of natural frequencies: the low frequencies associated with flexural vibrations, the mean frequencies associated with axial vibrations and the high frequencies, associated with transversal shear and pinching vibrations.
Asymptotic modelling of the linear dynamics of laminated beams / Serpilli, Michele; Lenci, Stefano. - In: INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES. - ISSN 0020-7683. - STAMPA. - 49:(2012), pp. 1147-1157. [10.1016/j.ijsolstr.2012.01.012]
Asymptotic modelling of the linear dynamics of laminated beams
SERPILLI, Michele;LENCI, Stefano
2012-01-01
Abstract
We study the linear dynamics of a layered elastic beam by means of the asymptotic expansion method. The beam consists of three linearly elastic isotropic layers: the middle layer is considered to be thinner and softer than the upper and lower ones. We characterize the limit models by distinguishing three cases of natural frequencies: the low frequencies associated with flexural vibrations, the mean frequencies associated with axial vibrations and the high frequencies, associated with transversal shear and pinching vibrations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.