Vibration of delaminated multilayer beams

Della, C. and Shu, D. W. (2006) Vibration of delaminated multilayer beams. Composites Part B: Engineering, 37(2-3), pp. 227-236. (doi: 10.1016/j.compositesb.2005.05.006)

Full text not currently available from Enlighten.


The free vibration of delaminated multilayer beams is analyzed. Both the ‘free mode’ and ‘constrained mode’ analyses in the study of delamination vibration are used. Two parameters are introduced, namely, the normalized axial stiffness and the normalized bending stiffness. These parameters provide a better insight on the vibration behavior of the delaminated beam. A relative slenderness ratio specific for delamination vibration is further introduced, which is shown to influence the vibration behavior of the beam. Global, mixed and local vibration modes occur depending upon the relative slenderness ratio of the beam. In addition, for three-layer beams with double delaminations, the lower and upper bounds of the natural frequency are obtained by assuming a totally ‘free’ and totally ‘constrained’ deformations of the delaminated layers. These bounds are easy to compute and provide useful approximations.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Della, Dr Christian
Authors: Della, C., and Shu, D. W.
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
College/School:College of Science and Engineering > School of Engineering
Journal Name:Composites Part B: Engineering
Publisher:Elsevier Ltd.
ISSN (Online):1879-1069

University Staff: Request a correction | Enlighten Editors: Update this record