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- Publisher
- Inderscience Publishers
- Copyright
- Copyright © Inderscience Enterprises Ltd
- ISSN
- 1758-7328
- eISSN
- 1758-7336
- DOI
- 10.1504/IJSTRUCTE.2021.114263
- Publisher site
- See Article on Publisher Site
Abstract
The extensive parametric study on the forced vibration characteristics of laminated composite stiffened plates using finite element method (FEM) is investigated in this paper. A nine noded isoparametric plate element with five degrees of freedom and a three noded isoparametric beam element with four degrees of freedom as stiffener element are appropriately combined together to obtain stiffened plate element. Newmark's method is applied to obtain the dynamic response of stiffened plates and is investigated for three different types of transient loads: uniformly distributed step load of infinite duration, uniformly distributed step load of finite duration (1 s) and uniformly distributed half sine load of finite duration (1 s). The dynamic response analysis of laminated stiffened plate is conducted with respect to boundary conditions of the plate, number, type and orientation of stiffeners, stiffener depth to plate thickness ratio and types of dynamic loading. Significant effects of the above parameters are observed on the dynamic responses of the laminated stiffened plates. Reduction of displacement response of the laminated composite plate is noticed to a large extent with introduction of stiffeners.
Journal
International Journal of Structural Engineering – Inderscience Publishers
Published: Jan 1, 2021