Artículo
Parametric vibration of thin-walled composite beams with shear deformation
Fecha de publicación:
11/09/2007
Editorial:
Academic Press Ltd - Elsevier Science Ltd
Revista:
Journal of Sound and Vibration
ISSN:
0022-460X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The dynamic stability of thin-walled composite beams, considering shear deformation, subjected to axial external force, has been investigated in this paper. The analysis is based on a small strain and moderate rotation theory, which is formulated through the adoption of a second-order displacement field. The Galerkin's method is used in order to discretize the governing equation and the Bolotin's method is applied to determine the regions of dynamic instability of a simply supported beam. The regions of instability are evaluated, and are expressed in non-dimensional terms. The influence of the longitudinal vibration on the unstable regions has been investigated. The numerical results show that this effect has large influence when the forcing frequency approaches to the natural longitudinal frequency, obtaining parametric instability regions substantially wider. Besides, the effect of shear flexibility is also analyzed for different laminate stacking sequence, considering open and closed cross-section beams.
Palabras clave:
Thin-Walled
,
Dynamic Stability
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Citación
Machado, Sebastián Pablo; Filipich, Carlos Pedro; Cortínez, Víctor Hugo; Parametric vibration of thin-walled composite beams with shear deformation; Academic Press Ltd - Elsevier Science Ltd; Journal of Sound and Vibration; 305; 4-5; 11-9-2007; 563-581
Compartir
Altmétricas