Free vibration analysis of stiffened and cracked laminated composite plate assemblies using shear-deformable dynamic stiffness elements
Abstract
In the paper, the dynamic stiffness method based on the HSDT and FSDT plate theories is applied to study free vibration characteristics of composite stiffened and cracked plate assemblies. The dynamic stiffness matrices for transverse vibration of laminated composite plate based on the HSDT and FSDT previously derived by authors have been coupled with the dynamic stiffness matrix of laminated composite plate undergoing in-plane vibration. The numerical analysis has been carried out through several illustrative examples in order to check the applicability and accuracy of the proposed method in the free vibration analysis of stiffened plate assemblies. The effects of transverse shear deformation, boundary conditions, side-to-thickness ratios, crack length or reinforcement amount within the GFRP beam on the free vibration characteristics have been discussed, and the variety of new results has been provided as a benchmark for future investigations.
Keywords:
Dynamic stiffness method / Free vibration / Composite plate assembly / CrackSource:
Composite Structures, 2017, 180, 723-740Publisher:
- Elsevier Ltd
Funding / projects:
- Towards development of sustainable cities: influence of traffic induced vibrations on buildings and humans (RS-MESTD-Technological Development (TD or TR)-36046)
- Research on condition assessment and improvement methods of civil engineering structures in view of their serviceability, load-bearing capacity, cost effectiveness and maintenance (RS-MESTD-Technological Development (TD or TR)-36048)
DOI: 10.1016/j.compstruct.2017.08.038
ISSN: 0263-8223